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 unsweetened cocoa powder; 1/2 teaspoon salt; 1 cup chopped hazelnuts; 1/2 cup chocolate chips

Highlighted under: Oven Recipes

I absolutely love these Chocolate Hazelnut Brownies! The combination of rich chocolate and crunchy hazelnuts creates a decadent treat that satisfies my sweet tooth in the best way possible. Each bite is a delightful blend of textures, with the fudgy brownie base offering a luxurious mouthfeel contrasted by the crunchy nuts. It’s an indulgent dessert that not only appeases cravings but also brings a sense of joy. I can't wait for you to try these; they might just become your new favorite brownie recipe!

Created by

Rosalyn Whitfield

Last updated on 2026-01-12T04:13:34.342Z

I remember the first time I made these Chocolate Hazelnut Brownies; I was experimenting with flavors in my kitchen. The smell of melting chocolate mixed with the nutty aroma of hazelnuts was intoxicating. As I poured the batter into the pan, I felt excited about the possibilities. The key is to slightly underbake the brownies to achieve that fudgy texture, which is perfection!

With every batch I’ve made since, I've tried incorporating different elements, like a sprinkle of sea salt on top. It not only enhances the chocolate flavor but also creates a contrasting taste that truly elevates the dessert. The result is an absolutely heavenly treat that I can't resist sharing with friends and family.

Why You'll Love These Brownies
Rich chocolate flavor paired with crunchy hazelnuts
Fudgy texture that melts in your mouth
Perfect for any occasion or as a sweet indulgence

The Right Ingredients Make All the Difference

Using high-quality cocoa powder is crucial for achieving the rich chocolate flavor that defines these brownies. I recommend opting for Dutch-process cocoa for a deeper, more refined taste. Additionally, fresh, good-quality chocolate chips can elevate the overall experience, ensuring that each bite is packed with a luscious chocolatey burst.

The chopped hazelnuts not only contribute a delightful crunch but also enhance the brownies' flavor profile. Make sure to toast the hazelnuts lightly before adding them to the batter; this step brings out their natural oils and intensifies their nutty aroma. If you have nut allergies or prefer a different flavor, feel free to substitute with toasted walnuts or pecans.

Mastering the Brownie Bake

Achieving that perfect fudgy texture relies heavily on not overbaking. Keep a close eye on the brownies as they approach the 25-minute mark; when you insert a toothpick into the center, it should come out with a few moist crumbs attached but not wet batter. This indicates a gooey interior without being underbaked.

Cooling the brownies completely in the pan is also essential. This step allows the structure to set, making it easier to cut them into neat squares. If you can resist the temptation, letting them sit overnight will enhance their flavors and give the brownies a more intense chocolatey taste.

Ingredients

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

Instructions

Preheat the oven

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

Melt the butter

In a saucepan, melt the butter over low heat. Once melted, remove from heat and stir in the sugar, eggs, and vanilla.

Combine dry ingredients

In a separate bowl, whisk together the flour, cocoa powder, and salt.

Mix together

Gradually add the dry ingredients to the butter mixture, stirring until just combined. Fold in the chopped hazelnuts and chocolate chips.

Bake

Pour the batter into the prepared baking pan and spread evenly. Bake for 25 minutes, or until a toothpick inserted in the center comes out mostly clean.

Cool and serve

Allow the brownies to cool in the pan before slicing into squares and serving.

Pro Tips

For an extra indulgent touch, drizzle some melted chocolate on top before serving. These brownies are best enjoyed warm with a scoop of vanilla ice cream!

Variations and Customizations

Feel free to get creative with this recipe! For a more pronounced chocolate flavor, you can swap a portion of the all-purpose flour for additional cocoa powder. Alternatively, if you want to add a hint of spice, a pinch of cinnamon or espresso powder will beautifully complement the chocolate and hazelnuts.

If you're looking for a lower-sugar option, consider using coconut sugar or a sugar substitute to reduce the sweetness while still retaining a moist texture. Just be aware that some substitutes may alter the baking time slightly, so monitor the baking process closely.

Storage and Make-Ahead Tips

These brownies can be made ahead of time and stored in an airtight container at room temperature for up to three days. To keep them fresher for longer, consider refrigerating them, where they can last up to a week. Just make sure to bring them back to room temperature before serving to enjoy their full flavor and texture.

For longer storage, you can freeze the brownies. First, let them cool completely, then wrap them tightly in plastic wrap and place them in a freezer-safe container. They can be frozen for up to three months. To enjoy, simply thaw them at room temperature or warm them up in the microwave for a few seconds to restore their fudginess.

Questions About Recipes

→ Can I substitute the hazelnuts?

Yes, you can use walnuts or pecans if you prefer, or even leave the nuts out entirely.

→ How should I store the brownies?

Store them in an airtight container at room temperature for up to 3 days or in the fridge for up to a week.

→ Can I freeze these brownies?

Absolutely! You can freeze the brownies for up to 3 months. Just make sure to wrap them tightly.

→ What can I do if my brownies crumble?

Make sure not to overbake them, as that can lead to crumbling. A slight underbake helps maintain a fudgy texture.