There’s something undeniably magical about a fresh batch of brownies. Especially when they are rich, fudgy, and packed with flavor. These Hazelnut Buckwheat Brownies take the classic dessert to new heights with the addition of nutty hazelnuts and wholesome buckwheat flour. Whether you’re serving them at a gathering or indulging in a quiet moment at home, these brownies are sure to satisfy your sweet tooth and impress your guests.
Why It’s Crowd-Pleasing

These brownies are a delightful combination of textures and flavors. The rich 70% dark chocolate creates a deep, chocolatey base, while the chopped hazelnuts add a satisfying crunch. The buckwheat flour not only provides a gluten-free alternative but also lends a subtle nuttiness that enhances the overall flavor profile. With a hint of espresso and vanilla, each bite is an indulgence that everyone will love. They’re perfect for any occasion, from casual weekend treats to fancy dinner parties.
What’s in the Bowl
To whip up a batch of these delicious Hazelnut Buckwheat Brownies, gather the following ingredients:
- 12 tablespoons unsalted butter
- 6 ounces 70% dark chocolate, roughly chopped
- 1 cup granulated sugar
- 3 large eggs
- 2 teaspoons instant espresso powder
- 2 teaspoons vanilla bean paste
- 1 cup buckwheat flour
- 1 cup white whole wheat flour
- 1/2 teaspoon kosher salt
- 1 cup semisweet chocolate chips
- 1 cup chopped hazelnuts
Setup & Equipment
Before starting your brownie adventure, make sure you have the following tools:
- 8×8 inch baking pan
- Parchment paper (for easy removal)
- Mixing bowls
- Whisk and spatula
- Double boiler or microwave-safe bowl (for melting chocolate)
- Measuring cups and spoons
Hazelnut Buckwheat Brownies in Steps

Step 1: Preheat Your Oven
Start by preheating your oven to 350°F (175°C). This ensures that your brownies bake evenly and come out perfectly gooey.
Step 2: Prepare the Baking Pan
Line your 8×8 inch baking pan with parchment paper, leaving some overhang on the sides. This will help you lift the brownies out once they’re cooled.
Step 3: Melt the Chocolate and Butter
In a double boiler or microwave-safe bowl, melt the 12 tablespoons of unsalted butter with the 6 ounces of dark chocolate. Stir until smooth and fully combined. Allow it to cool slightly.
Step 4: Mix the Wet Ingredients
In a large mixing bowl, whisk together the granulated sugar, large eggs, instant espresso powder, and vanilla bean paste. Pour in the melted chocolate mixture and stir until well combined.
Step 5: Combine the Dry Ingredients
In another bowl, sift together the buckwheat flour, white whole wheat flour, and kosher salt. Gradually add the dry ingredients to the wet ingredients, mixing gently until just combined.
Step 6: Fold in the Goodies
Fold in the semisweet chocolate chips and chopped hazelnuts. This is where the magic happens, as the chocolate and nuts add texture and flavor.
Step 7: Bake to Perfection
Pour the brownie batter into the prepared baking pan and spread it evenly. Bake in the preheated oven for about 25-30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Step 8: Cool and Serve
Once baked, remove from the oven and let it cool in the pan for about 10 minutes. Use the parchment overhang to lift the brownies out of the pan and transfer them to a wire rack to cool completely before slicing.
Tailor It to Your Diet

If you have specific dietary preferences or restrictions, feel free to customize this recipe:
- For a vegan version, substitute the eggs with flax eggs (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water per egg).
- Use dairy-free chocolate to make it dairy-free.
- Swap out granulated sugar for coconut sugar or a sugar substitute for a lower glycemic option.
- For nut allergies, you can replace hazelnuts with sunflower seeds or omit them altogether.
Missteps & Fixes
Baking can sometimes lead to unexpected challenges. Here are some common missteps and how to address them:
- Brownies are too dry: Ensure you are measuring your flour accurately. Over-measuring can lead to dry brownies.
- Brownies don’t rise: Make sure your baking powder (if used) is fresh and that you follow the ingredient measurements closely.
- Uneven baking: Rotate your baking pan halfway through the baking time to ensure even cooking.
- Sticking to the pan: Always use parchment paper to line your pan, or grease it thoroughly to prevent sticking.
Save It for Later
If you find yourself with leftover brownies (which is rare!), here’s how to store them:
Allow the brownies to cool completely, then slice them into squares. Store them in an airtight container at room temperature for up to 3 days or in the refrigerator for up to a week. For longer storage, freeze the brownies in an airtight container for up to 3 months. Just thaw at room temperature before enjoying!
Hazelnut Buckwheat Brownies FAQs
Can I use different nuts instead of hazelnuts?
Absolutely! You can substitute hazelnuts with walnuts, pecans, or even almonds for a different flavor and texture.
What can I serve with these brownies?
These brownies pair wonderfully with a scoop of vanilla ice cream, a drizzle of caramel sauce, or fresh berries for a delightful dessert.
How do I know when my brownies are done baking?
The brownies are done when the edges look set and a toothpick inserted in the center comes out with a few moist crumbs. Be careful not to overbake!
Can I make these brownies gluten-free?
Yes, you can make these brownies gluten-free by using only buckwheat flour or substituting it with a gluten-free all-purpose flour blend.
More from the Kitchen
If you love these Hazelnut Buckwheat Brownies, check out these other decadent brownie recipes:
- Chocolate Pecan Turtle Brownies
- Cranberry Cheesecake Brownie Bars
- Chocolate Peppermint Bark Brownies
Wrap-Up
These Hazelnut Buckwheat Brownies are not just a treat; they are an experience. Each bite is a harmonious blend of rich chocolate, nutty flavors, and a touch of sweetness that makes them irresistible. Perfect for sharing or indulging in solo, these brownies are a must-try for any dessert lover. So, roll up your sleeves, gather your ingredients, and get ready to bake something truly special!
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Hazelnut Buckwheat Brownies
Ingredients
- 12 tablespoons unsalted butter
- 6 ounces 70% dark chocolate roughly chopped
- 1 cup granulated sugar
- 3 large eggs
- 2 teaspoons instant espresso powder
- 2 teaspoons vanilla bean paste
- 1 cup buckwheat flour
- 1 cup white whole wheat flour
- 1/2 teaspoon kosher salt
- 1 cup semisweet chocolate chips
- 1 cup chopped hazelnuts
Instructions
- Step 1: Preheat your oven to 350°F (175°C) to ensure even baking.
- Step 2: Line your 8x8 inch baking pan with parchment paper, leaving some overhang for easy removal.
- Step 3: Melt the butter and dark chocolate together in a double boiler or microwave-safe bowl until smooth. Allow to cool slightly.
- Step 4: In a mixing bowl, whisk together sugar, eggs, espresso powder, and vanilla bean paste. Stir in the melted chocolate mixture.
- Step 5: Sift together buckwheat flour, white whole wheat flour, and salt in another bowl. Gradually mix into the wet ingredients until just combined.
- Step 6: Fold in chocolate chips and chopped hazelnuts for added texture and flavor.
- Step 7: Pour the batter into the prepared pan and bake for 25-30 minutes, or until a toothpick comes out with a few moist crumbs.
- Step 8: Cool in the pan for 10 minutes, then lift out using the parchment paper and transfer to a wire rack to cool completely before slicing.
Equipment
- 8x8-inch baking pan
- Parchment Paper
- Mixing bowls
- Whisk
- Spatula
- Double boiler or microwave-safe bowl
- Measuring cups and spoons
Notes
- Ensure accurate flour measurement to avoid dry brownies.
- Rotate the baking pan halfway through for even baking.
- Use parchment paper to prevent sticking.
