Chocolate Hazelnut Brownies

Highlighted under: Easy Desserts Ideas

I love making Chocolate Hazelnut Brownies because they perfectly blend rich chocolate with the nutty crunch of hazelnuts. Every time I bake them, the aroma fills my kitchen and tempts everyone nearby. The combination of flavors creates a decadent treat that satisfies any sweet tooth. Plus, they’re simple to make and require just a few ingredients, making them a go-to dessert for gatherings or a cozy night in. Trust me, once you try these brownies, they’ll become a favorite in your recipe collection!

Maribel Sutton

Created by

Maribel Sutton

Last updated on 2026-01-12T06:06:34.962Z

When I first bit into a Chocolate Hazelnut Brownie, I knew I had stumbled upon something magical. The rich, fudgy texture pairs wonderfully with the little bursts of crunch from the hazelnuts. I’ve experimented with different ways to incorporate the nuts, finally settling on toasting them lightly, enhancing their flavor further. By folding in the hazelnuts right before baking, they maintain the perfect bite for each square, making each piece a true delight.

Cooking these brownies taught me the importance of patience; allowing them to cool slightly before cutting ensures clean edges and preserves the gooey center. The best part? Drizzling a bit of melted chocolate on top before serving makes them look as incredible as they taste. Enjoying these brownies fresh out of the oven is an experience I highly recommend!

Why You Will Love This Recipe

  • Deliciously fudgy texture with nutty hazelnut flavors
  • A simple recipe that requires minimal ingredients
  • Perfect for both casual gatherings and special occasions

The Role of Key Ingredients

The richness of these Chocolate Hazelnut Brownies comes primarily from the combination of unsalted butter and semi-sweet chocolate chips. The melted butter not only contributes moisture but also helps create the fudgy texture that is characteristic of brownies. I recommend using good-quality chocolate chips; they melt beautifully and infuse the batter with that deep, indulgent chocolate flavor.

Brown and granulated sugars complement each other by contributing both texture and depth of flavor. Brown sugar adds moisture due to its molasses content, while granulated sugar contributes to the structure and sweetness. If you prefer a deeper flavor, consider increasing the proportion of brown sugar slightly; this can enhance the overall taste without affecting the consistency.

Baking Techniques for Success

When mixing the wet and dry ingredients, it's crucial to avoid overmixing once combined. Overmixing can lead to dense brownies rather than the desired fudgy consistency. Mix just until the flour and cocoa powder are incorporated; small lumps are perfectly fine. The batter should be thick and slightly glossy, indicating that it’s well-blended but not overworked.

For baking, using a 9x13 inch pan allows for even cooking and helps achieve those golden edges. Monitor your brownies closely in the last few minutes of baking—every oven varies, and they can go from perfectly baked to overdone quickly. A good test is to insert a toothpick; it should come out with a few moist crumbs, not completely clean.

Serving and Storage Tips

These brownies are great on their own, but a drizzle of melted chocolate on top can create an even more delicious treat. To do this, simply melt a few extra chocolate chips in the microwave and drizzle them over the cooled brownies before cutting them into squares. This adds a beautiful finish and enhances that chocolate flavor.

For storage, keep your brownies in an airtight container at room temperature for up to 3 days. You can also refrigerate them for a week. To freeze, wrap brownies tightly in plastic wrap, then place them in a freezer-safe container. They can be frozen for up to 3 months. When ready to enjoy, let them thaw at room temperature before serving.

Ingredients

Gather the following ingredients for your Chocolate Hazelnut Brownies:

Ingredients

  • 1 cup (200g) granulated sugar
  • 1/2 cup (100g) brown sugar
  • 1 cup (226g) unsalted butter, melted
  • 1 cup (200g) semi-sweet chocolate chips
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup (120g) all-purpose flour
  • 1/2 cup (50g) unsweetened cocoa powder
  • 1/2 teaspoon salt
  • 1 cup (150g) hazelnuts, chopped and toasted
  • Optional: additional chocolate for drizzling

Ensure all ingredients are fresh for the best results.

Instructions

Follow these steps to create your decadent brownies:

Preheat the oven

Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan or line it with parchment paper for easy removal.

Mix wet ingredients

In a large bowl, combine granulated sugar, brown sugar, and melted butter. Mix until smooth, then add the eggs and vanilla extract, whisking until fully incorporated.

Combine dry ingredients

In another bowl, whisk together the flour, cocoa powder, and salt until combined.

Combine mixtures

Gradually fold the dry ingredients into the wet mixture until just combined. Be careful not to overmix.

Add hazelnuts

Gently fold in the toasted hazelnuts, ensuring they are evenly distributed throughout the batter.

Bake

Pour the batter into your prepared baking pan and spread evenly. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

Cool and serve

Let the brownies cool in the pan for at least 10 minutes before transferring them to a wire rack to cool completely. Cut into squares and enjoy!

For an extra touch, drizzle melted chocolate on top before serving!

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Pro Tips

  • For perfectly fudgy brownies, don't overbake, and let them cool fully before cutting for clean edges. Toasting hazelnuts beforehand enhances their flavor remarkably.

Troubleshooting Common Issues

If your brownies come out too dry, it could mean they were overbaked or the oven temperature was too high. Always keep an eye on them in the last few minutes of the baking time. If you find yourself frequently having dry brownies, consider investing in an oven thermometer to ensure your temperatures are accurate.

Alternatively, if your brownies are too dense or gooey, it might be due to underbaking. Check the baking time and insert a toothpick to test doneness. Remember, the brownies will continue to set slightly as they cool, so don’t be afraid to take them out just before fully set.

Variations to Try

For a twist on the classic flavor profile, try adding a splash of espresso powder or instant coffee granules to enhance the chocolate richness. Just a teaspoon mixed into the melted butter can deepen the flavor without overpowering the hazelnuts.

If you’re feeling adventurous, you can replace hazelnuts with other nuts such as walnuts or pecans, or even fold in some white chocolate chunks for a different flavor combination. Each variation will create a unique treat while still keeping the deliciously fudgy base intact.

Questions About Recipes

→ Can I use different nuts?

Absolutely! You can substitute hazelnuts with walnuts or pecans for a different flavor profile.

→ How do I store leftovers?

Store brownies in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.

→ Can I freeze these brownies?

Yes! You can freeze the brownies for up to 3 months. Wrap them tightly in plastic wrap and then in aluminum foil.

→ What can I add for more flavor?

Consider adding espresso powder for a richer chocolate flavor or a sprinkle of sea salt on top for contrast.

Chocolate Hazelnut Brownies

I love making Chocolate Hazelnut Brownies because they perfectly blend rich chocolate with the nutty crunch of hazelnuts. Every time I bake them, the aroma fills my kitchen and tempts everyone nearby. The combination of flavors creates a decadent treat that satisfies any sweet tooth. Plus, they’re simple to make and require just a few ingredients, making them a go-to dessert for gatherings or a cozy night in. Trust me, once you try these brownies, they’ll become a favorite in your recipe collection!

Prep Time15 minutes
Cooking Duration25 minutes
Overall Time40 minutes

Created by: Maribel Sutton

Recipe Type: Easy Desserts Ideas

Skill Level: Beginner

Final Quantity: 16 servings

What You'll Need

Ingredients

  1. 1 cup (200g) granulated sugar
  2. 1/2 cup (100g) brown sugar
  3. 1 cup (226g) unsalted butter, melted
  4. 1 cup (200g) semi-sweet chocolate chips
  5. 4 large eggs
  6. 1 teaspoon vanilla extract
  7. 1 cup (120g) all-purpose flour
  8. 1/2 cup (50g) unsweetened cocoa powder
  9. 1/2 teaspoon salt
  10. 1 cup (150g) hazelnuts, chopped and toasted
  11. Optional: additional chocolate for drizzling

How-To Steps

Step 01

Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan or line it with parchment paper for easy removal.

Step 02

In a large bowl, combine granulated sugar, brown sugar, and melted butter. Mix until smooth, then add the eggs and vanilla extract, whisking until fully incorporated.

Step 03

In another bowl, whisk together the flour, cocoa powder, and salt until combined.

Step 04

Gradually fold the dry ingredients into the wet mixture until just combined. Be careful not to overmix.

Step 05

Gently fold in the toasted hazelnuts, ensuring they are evenly distributed throughout the batter.

Step 06

Pour the batter into your prepared baking pan and spread evenly. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

Step 07

Let the brownies cool in the pan for at least 10 minutes before transferring them to a wire rack to cool completely. Cut into squares and enjoy!

Extra Tips

  1. For perfectly fudgy brownies, don't overbake, and let them cool fully before cutting for clean edges. Toasting hazelnuts beforehand enhances their flavor remarkably.

Nutritional Breakdown (Per Serving)

  • Calories: 380 kcal
  • Total Fat: 26g
  • Saturated Fat: 15g
  • Cholesterol: 195mg
  • Sodium: 85mg
  • Total Carbohydrates: 32g
  • Dietary Fiber: 3g
  • Sugars: 24g
  • Protein: 6g