Chocolate Hazelnut Brownies

Name: Chocolate Hazelnut Brownies
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Yield: 12 brownies
Ingredients: 1 cup unsalted butter; 2 cups granulated sugar; 4 large eggs; 1 teaspoon vanilla extract; 1 cup all-purpose flour; 1 cup cocoa powder; 1/2 teaspoon salt; 1 cup toasted hazelnuts, roughly chopped; 1/2 cup Nutella

Highlighted under: Cozy Collection

When I decided to make Chocolate Hazelnut Brownies, I wanted to create a dessert that combined my love for rich chocolate with the nutty crunch of hazelnuts. The result exceeded my expectations, with each bite offering a delightful blend of flavors and textures. I found that toasting the hazelnuts beforehand intensified their nuttiness and created a wonderful contrast with the gooey brownie base. This recipe is perfect for any gathering or just a quiet night in when you crave something indulgent.

Created by

Tilda Greenwood

Last updated on 2026-01-12T05:45:34.690Z

I remember the first time I baked brownies from scratch, and although they turned out delicious, I knew I could enhance them by adding some of my favorite ingredients. For this version, I decided to incorporate toasted hazelnuts and a generous swirl of Nutella to enhance that chocolate-hazelnut vibe. The combination not only added complexity but also created a moist brownie that had everyone asking for the recipe.

One tip I learned through trial and error is to let the brownies cool completely before slicing. This allows them to set properly, resulting in cleaner cuts and a firmer texture. Trust me, patience is key when it comes to achieving the perfect brownie, and these are worth the wait!

        Why You'll Love This Recipe
        Rich chocolate flavor paired with fresh hazelnut crunch
Creamy texture that melts in your mouth
Perfect for celebrations or as a sweet indulgence

      

Mastering the Brownie Base

The brownie base is foundational to achieving that perfect fudgy texture. The combination of unsalted butter and granulated sugar creates a rich mouthfeel, while the cocoa powder brings deep chocolate notes. Make sure to melt the butter gently over medium heat to prevent burning, and allow it to cool before adding the eggs. This step ensures that the eggs do not scramble when mixed into the warm butter.

Another key technique is to mix the dry ingredients separately before combining them with the wet mixture. Whisking the flour, cocoa, and salt thoroughly ensures a uniform distribution of cocoa powder and avoids clumps. Mixing until just combined reduces gluten development, which keeps the brownies soft and prevents them from becoming cake-like.

The Hazelnut Addition

Choosing the right hazelnuts is crucial; look for fresh ones as they have a more intense flavor. Toasting the hazelnuts before incorporating them into the batter enhances their nuttiness and adds a delightful crunch. Spread them in a single layer on a baking sheet and toast in a preheated oven for about 10–12 minutes, shaking halfway through, until they’re golden and fragrant. Keep a close eye to prevent burning.

The addition of Nutella not only imparts a creamy richness but also enhances the overall chocolate flavor. For a fun twist, consider swirling in different flavored nut butters or even flavored chocolates. Just keep the proportions the same to maintain the brownie’s consistency, ensuring every bite is a surprise.

Ingredients

Brownie Base

1 cup unsalted butter
2 cups granulated sugar
4 large eggs
1 teaspoon vanilla extract
1 cup all-purpose flour
1 cup cocoa powder
1/2 teaspoon salt

Chocolate Hazelnut Addition

1 cup toasted hazelnuts, roughly chopped
1/2 cup Nutella

Optional Topping

Powdered sugar for dusting.

Instructions

Preheat the Oven

Preheat your oven to 350°F (175°C). Grease and flour a 9x13 inch baking pan.

Melt Butter and Sugar

In a large saucepan, melt the butter over medium heat. Stir in the sugar and mix until well combined.

Add Eggs and Vanilla

Remove from heat and let cool slightly. Add eggs one at a time, mixing well after each addition. Stir in the vanilla extract.

Combine Dry Ingredients

In a separate bowl, whisk together the flour, cocoa powder, and salt. Gradually add to the butter mixture, stirring until just combined.

Fold in Hazelnuts and Nutella

Gently fold in the chopped hazelnuts and swirl in the Nutella until evenly distributed.

Bake the Brownies

Spread the batter into the prepared pan and bake for 25 minutes. A toothpick should come out with moist crumbs.

Cool and Serve

Allow to cool in the pan for at least an hour before cutting into squares. Dust with powdered sugar if desired.

Enjoy!

Dig in and enjoy your delicious brownies!

Pro Tips

For an extra touch, consider adding a scoop of vanilla ice cream on top of each brownie when serving.

Storage and Make-Ahead Tips

These brownies can be made ahead of time and stored for up to five days at room temperature in an airtight container. Alternatively, for longer storage, wrap individual brownies in plastic wrap and freeze for up to three months. When you're ready to indulge, simply let them thaw at room temperature for an hour or heat them briefly in the microwave for that fresh-baked taste.

If you want to keep them extra moist during storage, place a slice of bread in the container with the brownies. The bread will absorb moisture and help keep the brownies soft and fudgy. Just make sure to change the bread slice every couple of days to prevent mold.

Serving Suggestions

For a more decadent experience, serve these brownies warm with a scoop of vanilla ice cream and a drizzle of chocolate sauce or caramel. Adding a sprinkle of sea salt over the top balances the sweetness and enhances the flavors wonderfully. Pairing with coffee or espresso also makes for a fantastic dessert experience.

Consider sprinkling chopped hazelnuts on top right before baking for added crunch and visual appeal, or dust with powdered sugar for a classic finishing touch. For a touch of seasonal flair, serve them alongside fresh raspberries or strawberries, which not only brighten the plate but also complement the rich chocolate beautifully.

Questions About Recipes

→ Can I use other nuts instead of hazelnuts?

Yes, you can substitute walnuts or pecans for a different flavor.

→ How should I store these brownies?

Store in an airtight container at room temperature for up to 4 days.

→ Can I freeze the brownies?

Absolutely! Wrap each brownie individually and freeze for up to 3 months.

→ What can I serve with these brownies?

Pair them with whipped cream, ice cream, or chocolate sauce for a decadent dessert.