Hazelnut Brownies Recipe ~ Barley & Sage (2024)

Published: · by Kyleigh Sage · This post may contain affiliate links.

Jump to Recipe Print Recipe

These chewy hazelnut brownies are rich, chocolatey, filled with roasted hazelnuts, and then swirled with creamy hazelnut butter! They're the perfect texture between fudgy and cakey brownies and super easy to make!

Hazelnut Brownies Recipe ~ Barley & Sage (1)

If you love the chocolate hazelnut combo, you might also like these chocolate hazelnut cupcakes or these Nutella macarons!

Jump to:
  • Ingredient Notes
  • How to Make Hazelnut Butter
  • Step by Step Instructions
  • Tips for the Best Brownies!
  • Recipe FAQ's
  • Tips for Success!
  • More Recipes You Might Like!
  • Recipe Card
  • Comments

Ingredient Notes

You only need a handful of simple ingredients to make these fudgy chocolate hazelnut brownies!

Hazelnut Brownies Recipe ~ Barley & Sage (2)
  • Cocoa powder- My absolute favorite cocoa powder to use in my baking is theKing Arthur Flour Triple Cocoa Blend! It's a blend of natural, Dutch, and black cocoa and is perfect for any baking. But this recipe will work great with whatever cocoa you have on hand! You can use either natural cocoa or Dutch processed cocoa!
  • Butter- I like using melted butter for flavor, but you can also sub a neutral vegetable oil if you prefer.
  • Sugar- I use a combination of granulated sugar and brown sugar, but you can easily swap and use just one or the other.
  • Hazelnuts - I love adding finely chopped hazelnuts to the brownie batter for texture and crunch. But you could also make these brownies with almonds, peanuts, or pecans!
  • Hazelnut butter - My favorite jarred hazelnut butter is from Italy (not exactly accessible lol) but you can also find it at a lot of health food stores, or make your own! You can also substitute a chocolate hazelnut spread like Nutella if you prefer!
  • Flaky sea salt- This is optional but I just love the way the sea salt compliments the rich chocolate and hazelnuts! I exclusively useMaldon Sea Saltfor topping my baked goods!

You can also add in some chopped chocolate chunks along with the chopped hazelnuts if you want!

The complete list of ingredients and amounts is located in therecipe card below.

How to Make Hazelnut Butter

Homemade nut butter is surprisingly easy to make! You just need:

  1. Remove as many of the skins from the hazelnuts as you can. If you rub them with a towel, they fall off pretty easily!
  2. Add the hazelnuts to a food processor and blend for about 2 minutes at a time, until smooth and creamy. The longer you blend, the runnier the hazelnut butter will be. After each interval, be sure to scrape down the sides of the food processor. [If the food processor starts to get warm and over heat a bit, let it rest for about 5 minutes before blending again.]
  3. Transfer the hazelnut butter to an airtight container and store in the fridge for up to 2 months!

*I use the dry-roasted, unsalted hazelnuts from Trader Joe's. If you buy raw hazelnuts, you can roast them at 325°F for about 15 minutes.

Step by Step Instructions

Preheat the oven to 350°F.

Whisk together the melted butter, brown sugar, and granulated sugar.

Add in the eggs one at a time and whisk each one until fully incorporated and the batter starts to get lighter in color. To get crinkly brownie tops, be sure to whisk the sugar and eggs for at least 4-5 minutes (a hand mixer is very helpful for this).

Then add in the vanilla and mix until smooth.

Hazelnut Brownies Recipe ~ Barley & Sage (3)
Hazelnut Brownies Recipe ~ Barley & Sage (4)

Fold in the cocoa powder, flour, and salt and mix until the batter is just combined.

Then gently fold in the chopped hazelnuts.

Hazelnut Brownies Recipe ~ Barley & Sage (5)
Hazelnut Brownies Recipe ~ Barley & Sage (6)
Hazelnut Brownies Recipe ~ Barley & Sage (7)

Cut a parchment paper sling slightly smaller than the width of the cake pan and make sure it fits flatly in the bottom. Then lightly spray the bottom and sides of the pan with a vegetable oil based spray (I love Bakers Joy or Everbake). Place you parchment paper sling in the bottom of the pan and smooth it out so that it sticks to the pan spray (you can use metal binder clips to secure it to the pan). After baking you’ll be able to just slide the brownies right out of the pan!

I love all of myUSA Pancake pans because they are extremely sturdy and truly nonstick. However, I still like to prepare my pans to ensure the hazelnut brownies come out easily.

Pour the batter into your prepared baking pan.

Hazelnut Brownies Recipe ~ Barley & Sage (8)
Hazelnut Brownies Recipe ~ Barley & Sage (9)

Drop small spoonful's of hazelnut butter on top of the brownies and swirl into the brownie batter.

Hazelnut Brownies Recipe ~ Barley & Sage (10)

Bake at 350°F for 30-45 minutes or until an inserted knife comes out mostly clean.

Remove from the oven and let fully cool in the pan. Then use the edges of the parchment paper to slide the brownies out of the pan.

Sprinkle with flaky sea salt, if desired, and enjoy!

Hazelnut Brownies Recipe ~ Barley & Sage (11)

Tips for the Best Brownies!

(and blondies too!)

Use room temperature ingredients! Always make sure ingredients like butter, eggs, milk, etc. are at room temperature before baking (unless the recipe indicates otherwise)! This ensures they'll incorporate into the batter more easily and leads to overall better texture. Remove all ingredients from the fridge 30 minutes to an hour before baking for best results.

Measure your flour correctly! It's most accurate to use a kitchen scale, but if you're measuring by volume you want to spoon and level! Fluff up the flour a bit with a spoon, and then spoon flour into the measuring cup. Once it's overflowing, use the back of a knife to level it off. Don't ever pack flour into the measuring cup or you'll end up with way too much! Improperly measured flour can lead to dry, dense baked goods. Same goes for cocoa powder!

Use an oven thermometer! Just because your oven says it's 350, doesn't mean it is! If you oven hasn't been calibrated recently, it can be as much as 30 degrees off, which will negatively affect all baked goods from cakes to macarons! An oven thermometer is the easiest/cheapest way to ensure your oven is always at the proper temperature.

Use a metal baking pan! Not all materials are created equal when it comes to baking. Metal cake pans conduct heat much better than other materials like glass or ceramic, so your baked goods will cook faster and more evenly!

It's better to undercook the brownies slightly, than overcook them! Brownies will dry out quick, so it's best to err on the side of caution when baking brownies! Bake just until an inserted toothpick comes out mostly clean but still a tad gooey. If you aren't sure, just go ahead and take them out because they'll continue to firm up as they cool. Note: the larger the pan, the less time the brownies will take to cook.

Be patient and let them cool. Warm brownies fresh out of the oven are delish, I know. But it's best to let them fully cool before digging in. The brownies will be less likely to crumble when you cut them and the center is more likely to be fully cooked while still being perfectly fudgy.

Hazelnut Brownies Recipe ~ Barley & Sage (12)

Recipe FAQ's

How long do these hazelnut brownies last?

Brownies are best eaten within the first 2-3 days, but will keep in an airtight container at room temperature for up to 5 days.

Can I freeze brownies?

Yes! These hazelnut brownies can be frozen for up to 3 months! I recommend cutting the brownies into squares before freezing. To thaw, you can either place in the fridge overnight or reheat in the microwave.

Do I have to use hazelnuts?

Nope! You can use whatever type of nut you prefer! You can use the same method with almonds, peanuts, cashews, etc.

How to get crinkle top brownies?

To get crinkly tops on your hazelnut brownies, be sure to beat the eggs and sugar together for at least 4-5 minutes! This incorporates extra air into the batter which is what helps form those crinkly tops!

How do you cut brownies cleanly to get perfect edges?

To get clean slices of these hazelnut brownies, run a super sharp knife under hot water until the blade is warm, then wipe it dry. Then cut a single slice and repeat. It's a bit tedious to clean the knife before every cut, but you get perfect slices every time!

Tips for Success!

For best results I always recommend using weight measurements (especially when baking) because it's the most accurate. Kitchen scales are super affordable and also reduce the number of dishes you have to do! However, all my recipes also include US customary measurements for convince. Use this chart to convert measurements for common ingredients!

Substitutions: In all my recipes, I've included substitutions that I know will work, but I cannot guarantee results if you substitute ingredients that I have not recommended. [For example, granulated sugar and honey are indeed both sweeteners but they have very different properties so they can not always be swapped 1:1. Using honey in a cookie recipe that calls for granulated sugar will yield a giant mess.] In the recipe card you'll find links to the specific ingredients/brands that I use.

A note on salt: I almost exclusively use Diamond Crystal Kosher Salt because it's the best all-purpose salt for cooking and baking. If you're not using kosher salt, consult this handy guide for a conversion chart! When in doubt, if you're using table salt just reduce the amount by half for baked goods. When cooking, I prefer to under-salt because you can always add more! If you've over-salted, adding a little bit of acid (like lemon juice) can help.

More Recipes You Might Like!

  • Chewy Halva Brownies
  • Chocolate Hazelnut Cupcakes with Nutella Buttercream
  • Espresso Brownies
  • Chocolate Macarons with Nutella Buttercream

If you make this recipe, please leave a star rating at the bottom of the page! This provides helpful feedback to both me and other readers. And if you want more delicious, scratch-made recipes you can subscribe to my newsletter and follow along on Instagram, Pinterest, and Facebook!

Recipe Card

Hazelnut Brownies Recipe ~ Barley & Sage (17)

Hazelnut Brownies

5 from 39 votes

These chewy hazelnut brownies are rich, chocolatey, filled with roasted hazelnuts, and then swirled with creamy hazelnut butter!

Print Pin

Prep Time: 15 minutes minutes

Cook Time: 35 minutes minutes

Cooling Time: 1 hour hour

Total Time: 1 hour hour 50 minutes minutes

Servings: 16 brownies

Author: Kyleigh Sage

Special Equipment

Need Metric Measurements?Use the options below to toggle between cups and grams!

Ingredients

  • 1 ¼ cups unsalted butter, melted
  • 1 ½ cups light brown sugar
  • 1 cup granulated sugar
  • 4 large eggs, room temperature
  • 2 teaspoons vanilla extract
  • 1 ½ cup unsweetened cocoa powder
  • ¾ cup all purpose flour
  • ½ teaspoon kosher salt
  • ½ cup chopped hazelnuts
  • 2 tablespoons hazelnut butter, substitute chocolate hazelnut spread
  • flaky sea salt, optional

Instructions

  • Preheat the oven to 350°F.

  • Whisk together the melted butter, brown sugar, and granulated sugar.

  • Add in the eggs one at a time and whisk each one until fully incorporated and the batter starts to get lighter in color. To get crinkly brownie tops, be sure to whisk the sugar and eggs for at least 4-5 minutes. Then add in the vanilla and mix until smooth.

  • Fold in the cocoa powder, flour, and salt and mix until the batter is just combined.

  • Then gently fold in the chopped hazelnuts.

  • Cut a parchment paper sling slightly smaller than the width of the cake pan and make sure it fits flatly in the bottom. Then lightly spray the bottom and sides of the pan with a vegetable oil based spray. Place you parchment paper sling in the bottom of the pan and smooth it out so that it sticks to the pan spray (you can use metal binder clips to secure it to the pan).

  • Pour the batter into your prepared baking pan.

  • Drop small spoonful's of hazelnut butter on top of the brownies and swirl into the brownie batter.

  • Bake at 350°F for 30-45 minutes or until an inserted knife comes out mostly clean.

  • Remove from the oven and let fully cool in the pan. Then use the edges of the parchment paper to slide the brownies out of the pan.

  • Sprinkle with flaky sea salt and enjoy!

  • Brownies are best eaten within the first 2-3 days, but will keep in an airtight container at room temperature for up to 5 days.

Notes

It's better to undercook the brownies slightly, than overcook them!Brownies will dry out quick, so it's best to err on the side of caution when baking brownies! Bake just until an inserted toothpick comes outmostlyclean but still a tad gooey. If you aren't sure, just go ahead and take them out because they'll continue to firm up as they cool. Note: the larger the pan, the less time the brownies will take to cook.

Be patient and let them cool.Warm brownies fresh out of the oven are delish, I know. But it's best to let them fully cool before digging in. The brownies will be less likely to crumble when you cut them and the center is more likely to be fully cooked while still being perfectly fudgy.

Note: The square cake pans I use are between 2 ¼ and 2 ½ inches deep (so that you can get those super thick brownies). So if your pan happens to be shallower, you might end up with a little too much batter. So instead you can also bake these brownies in a 9x13 inch pan, just note the brownies will be much thinner than the photos.

Nutrition

Serving: 1 | Calories: 313kcal | Carbohydrates: 42g | Protein: 4g | Fat: 17g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 1g | Cholesterol: 85mg | Sodium: 100mg | Potassium: 179mg | Fiber: 3g | Sugar: 33g | Vitamin A: 511IU | Calcium: 40mg | Iron: 2mg

The nutritional information on this website is only an estimate and is provided for convenience and as a courtesy only. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

Category | Dessert, Snack

Cuisine | American

Love this recipe?Mention @barleyandsage on Instagram and tag #barleyandsage

Hazelnut Brownies Recipe ~ Barley & Sage (2024)

FAQs

What makes brownies fudgy vs cakey? ›

Fudgy brownies have a higher fat-to-flour ratio than cakey ones. So add more fat—in this case, butter and chocolate. A cakey batch has more flour and relies on baking powder for leavening. The amount of sugar and eggs does not change whether you're going fudgy or cakey.

What are Katharine Hepburn brownies? ›

The brownies are made with unsweetened chocolate, which is also known as baking, plain or bitter chocolate. It is chocolate in its rawest form and this means that unsweetened chocolate is just ground cocoa nibs that have been refined and contain between 50-55% cocoa butter (cacao fat).

How to make brownies more sweet? ›

Salt enhances the sweetness in your brownies. You might think that adding salt would make brownies, or any chocolate, salter, but it actually brings out the sweet quality in these types of desserts.

What are the three types of brownies? ›

Brownie textures fall into three general camps… Cakey, fudgy and chewy. Cakey brownies, like the name implies, are light, moist and airy, with a slightly fluffy, cake-like interior. Fudgy brownies are moist, dense and gooey, with almost the texture of fudge, but not quite as compact.

What does adding an extra egg to brownie Mix do? ›

If you want to get a little more creative with your brownie mix hacks, add an extra egg to the batter. The extra protein will help thicken up the batter and make it fluffier, creating a more decadent, fudgy texture. You can also add the yolk by itself in addition to the 2 eggs a box brownie mix typically calls for.

Is butter or oil better for brownies? ›

In brownies, both butter and oil will offer a moist, tender texture, but only butter will give the dish the aeration needed for rising brownies well. If you use a cake brownie, butter is a better option because it helps rise the batter. For denser, fudge type brownies, oil is permissable.

Why are they called blonde brownies? ›

They're called blondies because they lack the brown cocoa powder of brownies. They're blonde with vanilla and brown sugar, not brown.

What is a Little Debbie brownie? ›

Chewy 4 oz. chocolatey brownie topped with a chocolatey frosting and color candy coated chocolate pieces. The Little Debbie® Vending Cosmic Brownie is a chewy 4 oz brownie topped with chocolatey icing then sprinkled with colorful candy-coated pieces to make it simply out of this world!

Why did brownies change name? ›

Girl Guides of Canada announced Wednesday it's changing the name of its Brownies branch to Embers in an effort to be more inclusive. The organization said in November it wanted to change the name of its program for seven- and eight-year-old girls to remove barriers for those who are racialized.

Which sugar is better for brownies? ›

Using caster sugar in brownies also helps to get a super crinkly top. Caster sugar has a smaller grain size than granulated sugar, so it dissolves better in the egg mixture, to give that nice crinkly top. If you only have granulated sugar on hand it will still work fine particularly if you are in the US.

Is it better to use cocoa powder or chocolate in brownies? ›

As compared to those made with just chocolate or a combination of the two, cocoa brownies are reliably superior in terms of texture and flavor.

What is the best thing to add to brownies? ›

All the mix-ins

Experiment with pretzels, candy, or even potato chips (trust me, the salty crunch really is so good here) to add an extra boost of flavor and a crunchy texture. For a really fun addition that adds a ton of color, stir some strawberries or blueberries into the batter.

What is the old version of brownies? ›

Did you know that Brownies were originally called 'Rosebuds'? Rosebuds was established in 1914 for girls to join before they became Guides. Just one year later, the name was changed to Brownies. Brownies are the second-youngest members of the Girlguiding family, for girls aged between 7 and 10.

What are the sixes in brownies? ›

A Brownie Pack was divided into groups of six girls called a Six. Each Six was called after 'little people' such as Elf, Imp, Sprite or Gnome. A brown wool beret was introduced for Brownies in 1950 and stockings were changed to socks.

What are the little people called brownies? ›

So what were Brownies like in folk tales? They were described as small, good-natured spirits or goblins (sometimes called “magical little people”) that would appear during the night and do good deeds around the house, without ever having to be asked to help.

Why didn't my brownies come out fudgy? ›

Achieving a fudgy brownie is all to do with the ratio of fat to flour. A fudgy brownie recipe will use more fat than flour. Generally this is achieved by adding more butter or real chocolate to your brownie recipe. A cakey brownie recipe on the other hand will call for more flour in the ratio of fat to flour.

How do you keep brownies fudgy? ›

Airtight Containers

Use parchment paper to layer brownies into an airtight container for best results. Tip: When storing brownies in an airtight container, add a slice of bread in with them. The moisture from the bread will help keep your brownies fresh and soft for a couple more days.

Are my brownies fudgy or undercooked? ›

To test for doneness with a toothpick, insert a toothpick into the center of the brownies and pull it back out. For fudgy brownies, you'll want to see some moist crumbs attached to the toothpick when you pull it back out. If it looks like it's covered in brownie batter, the brownies will need to bake a bit longer.

Are brownies supposed to be fudgy in the middle? ›

Brownies are perfect when the middle is just baked, so it sets to a fudgy, moist consistency - if your flour and baking powder are causing the edges to rise, cook and set too quickly, they will give the appearance of a sunken centre, even if the centre is perfectly cooked.

References

Top Articles
Latest Posts
Article information

Author: Laurine Ryan

Last Updated:

Views: 5840

Rating: 4.7 / 5 (57 voted)

Reviews: 88% of readers found this page helpful

Author information

Name: Laurine Ryan

Birthday: 1994-12-23

Address: Suite 751 871 Lissette Throughway, West Kittie, NH 41603

Phone: +2366831109631

Job: Sales Producer

Hobby: Creative writing, Motor sports, Do it yourself, Skateboarding, Coffee roasting, Calligraphy, Stand-up comedy

Introduction: My name is Laurine Ryan, I am a adorable, fair, graceful, spotless, gorgeous, homely, cooperative person who loves writing and wants to share my knowledge and understanding with you.