Chocolate Hazelnut Brownies

Highlighted under: Baking & Desserts

I absolutely love making these chocolate hazelnut brownies when I want a decadent treat that satisfies my sweet tooth. The combination of rich chocolate and crunchy hazelnuts creates a flavor explosion that's hard to resist. Each bite is fudgy, gooey, and utterly delicious! Whenever I share them with friends or family, they're always a hit. I find that serving them slightly warm with a scoop of vanilla ice cream elevates the experience even more. Give these brownies a try; you'll be amazed at how easy they are to make!

Josie Lambert

Created by

Josie Lambert

Last updated on 2026-01-13T04:16:18.873Z

When I first experimented with adding hazelnuts to my brownie recipe, I was blown away by the results. The nuts add not only a wonderful crunch but also a depth of flavor that elevates the chocolate. I recommend toasting the hazelnuts beforehand; it really brings out their natural oils and enhances their taste. I’ve found that the best way to incorporate them is to fold them into the batter just before baking.

One time, I made these brownies for a gathering, and they disappeared within minutes! The secret is using high-quality chocolate; it really makes a difference in richness. Plus, I often add a pinch of sea salt on top right before serving for an extra layer of flavor. Don’t skip this step; it complements the sweetness beautifully!

Why You'll Love These Brownies

  • Intense chocolate flavor paired with nutty hazelnuts
  • Fudgy texture that melts in your mouth
  • Perfect for sharing or indulging solo

The Importance of Quality Ingredients

To achieve the best flavor in your chocolate hazelnut brownies, it's crucial to use high-quality chocolate and cocoa powder. I recommend opting for Dutch-processed cocoa, as it lends a deeper chocolate flavor that pairs beautifully with the nuttiness of the hazelnuts. Additionally, using chocolate chips made from at least 60% cocoa solids can enhance the overall taste and texture of your brownies, making them even more indulgent.

When selecting hazelnuts, try to use raw, unsalted ones to maintain proper control over the brownies' sweetness and saltiness. If you can't find fresh hazelnuts, you can substitute blanched almonds for a similar texture, although the flavor will differ slightly. Toasting the nuts lightly before folding them into the batter can also amplify their nuttiness, making each bite even more delightful.

Baking Tips for Perfect Brownies

Baking times can vary depending on your oven, so it's essential to keep an eye on your brownies as they approach the 25-minute mark. Look for slightly puffed edges and a center that is still glossy and a bit soft when you insert the toothpick. It's crucial to avoid overbaking, as it can lead to dry brownies; they should have a fudgy texture that melts in your mouth.

If you're unsure about how to cut your brownies without them falling apart, let them cool in the pan for at least 10 minutes, as instructed. For cleaner cuts, use a sharp knife warmed in hot water, then dried. This technique helps prevent the brownies from sticking to the knife, ensuring that each square boasts a beautiful, neat appearance.

Ingredients

Brownies

  • 1 cup (225g) unsalted butter
  • 2 cups (400g) granulated sugar
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup (125g) all-purpose flour
  • 1 cup (90g) cocoa powder
  • 1/2 teaspoon salt
  • 1 cup (150g) chopped hazelnuts
  • 1 cup (175g) chocolate chips

Enjoy your delicious brownies!

Instructions

Preheat the oven

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

Melt the butter and mix

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

Combine dry ingredients

In a separate bowl, whisk together the flour, cocoa powder, and salt. Gradually add this mixture to the wet ingredients and stir until just combined.

Fold in hazelnuts and chocolate chips

Gently fold in the chopped hazelnuts and chocolate chips until evenly distributed in the batter.

Bake

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

Cool and serve

Allow the brownies to cool in the pan for at least 10 minutes before cutting them into squares. Enjoy!

These brownies are sure to impress!

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Pro Tips

  • For a richer flavor, use dark chocolate cocoa powder and high-quality chocolate chips. Don’t overbake
  • the brownies should be soft in the center.

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 four days. If you want to keep them fresh longer, you can refrigerate them for up to a week. Just remember that cold brownies can be a little firmer, so consider letting them sit at room temperature for a brief period before enjoying.

For longer storage, you can freeze these brownies. Wrap them tightly in plastic wrap and then place them in a freezer bag, where they can last for up to three months. When you're ready to enjoy, simply thaw at room temperature or warm them gently in the oven for a few minutes. The resulting gooey texture will be just as delightful as when they were freshly baked.

Delicious Serving Suggestions

While these brownies are delightful on their own, elevating them with a scoop of vanilla ice cream creates a heavenly dessert experience. The creaminess of the ice cream complements the rich chocolate flavor, and adding a drizzle of chocolate sauce or caramel can take it up a notch. For added crunch, consider sprinkling extra chopped hazelnuts on top before serving.

Another fun variation is to serve these brownies with a dollop of whipped cream and fresh berries for a refreshing contrast. You can also experiment with toppings like melted peanut butter or a sprinkle of sea salt to enhance the flavor even further. These delicious additions can transform a simple brownie into a gourmet dessert worthy of any occasion.

Questions About Recipes

→ Can I use different nuts?

Absolutely! Walnuts or pecans are great alternatives if you prefer.

→ How do I store leftovers?

Store in an airtight container at room temperature for up to 3 days.

→ Can I freeze the brownies?

Yes, freeze them in an airtight container for up to 3 months. Thaw before serving.

→ What can I pair with these brownies?

They are delicious on their own, but a scoop of ice cream or a drizzle of caramel sauce takes them to the next level!

Chocolate Hazelnut Brownies

I absolutely love making these chocolate hazelnut brownies when I want a decadent treat that satisfies my sweet tooth. The combination of rich chocolate and crunchy hazelnuts creates a flavor explosion that's hard to resist. Each bite is fudgy, gooey, and utterly delicious! Whenever I share them with friends or family, they're always a hit. I find that serving them slightly warm with a scoop of vanilla ice cream elevates the experience even more. Give these brownies a try; you'll be amazed at how easy they are to make!

Prep Time15 minutes
Cooking Duration25 minutes
Overall Time40 minutes

Created by: Josie Lambert

Recipe Type: Baking & Desserts

Skill Level: Intermediate

Final Quantity: 12 servings

What You'll Need

Brownies

  1. 1 cup (225g) unsalted butter
  2. 2 cups (400g) granulated sugar
  3. 4 large eggs
  4. 1 teaspoon vanilla extract
  5. 1 cup (125g) all-purpose flour
  6. 1 cup (90g) cocoa powder
  7. 1/2 teaspoon salt
  8. 1 cup (150g) chopped hazelnuts
  9. 1 cup (175g) chocolate chips

How-To Steps

Step 01

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

Step 02

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

Step 03

In a separate bowl, whisk together the flour, cocoa powder, and salt. Gradually add this mixture to the wet ingredients and stir until just combined.

Step 04

Gently fold in the chopped hazelnuts and chocolate chips until evenly distributed in the batter.

Step 05

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

Step 06

Allow the brownies to cool in the pan for at least 10 minutes before cutting them into squares. Enjoy!

Extra Tips

  1. For a richer flavor, use dark chocolate cocoa powder and high-quality chocolate chips. Don’t overbake
  2. the brownies should be soft in the center.

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