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    Home » Recipes » Bars & Brownie Recipes

    Published: Nov 8, 2022 by Paula Montenegro · Income from ads and affiliate links 36 Comments

    Chocolate Hazelnut Brownies

    Jump to Recipe
    Red and white text overlay on image with stack of three brownies.
    Bitten brownie in a stack. Close up image with brown and blue text overlay.

    These are fudgy, easy to make, and incredibly rich, one of the best brownies I ever made. And they happen to be gluten-free. They keep well and can be frozen. I hope you make them soon because they are fabulous!

    White surface with block of cut brownies on parchment paper, glass bottle, light blue cloth in the background.

    As an Amazon Associate, I earn from qualifying purchases. Please read my disclosure policy.

    Originally published in 2013, the text and images in this post have been updated to serve you better. The recipe remains the same.

    I strongly believe there's no such thing as too many brownie recipes. So I keep adding new ones I deem worthy of my amazing readers. That's you btw.

    These fudgy nut brownies are my way of not feeling guilty for throwing away a very large amount of vodka-infused hazelnuts from this homemade hazelnut liqueur. A very old recipe I still have to update.

    It calls for straining the final liquid and discarding the nuts. Yeah. Like that was gonna happen. The hazelnuts tasted amazing after months of infusing, and I didn't want to waste them.

    Making a boozy version of this hazelnut loaf cake or the chocolate hazelnut mini bundts came to mind.

    But I concocted a new brownie recipe with ground hazelnuts, dark chocolate, and some rice flour. Lucky you. Really. It's wonderful.

    They are some of the best brownies I have ever made, a thought later reinforced by dozens of guests at a party and my family for whom I made these two nights ago.

    Stack of brownies on white surface. Hand holding top one that is bitten.
    Table of Contents Hide
    Ingredients
    How to make hazelnut brownies
    Baking
    Variations
    Storage
    Kitchen notes
    Related recipes you might like:
    Fudgy Hazelnut Brownies

    Ingredients

    • Hazelnuts
    • Unsalted butter.
    • Chocolate: use your favorite dark semisweet chocolate for this recipe. I like Callebaut 54% chocolate wafers or Ghirardelli Premium baking bar.
    • Eggs: fresh, large.
    • White granulated sugar.
    • Rice flour:
    • Salt: I like to use kosher salt when baking. But regular table salt works just fine.
    • Baking powder: make sure it isn't expired. 
    • Vanilla: I use pure vanilla extract or pure vanilla paste when available, but a good vanilla essence (artificially flavored) also works and is infinitely cheaper. 

    See the recipe card at the end of this post for quantities.

    White marble surface with ingredients for hazelnut brownies including butter, eggs, rice flour, sugar, vanilla, chocolate.

    How to make hazelnut brownies

    No need for fancy equipment, like with most brownie recipes. Just a large mixing bowl and a whisk.

    Sugar added to brownie batter in a glass bowl with a whisk inside. White marble surface.

    Add the sugar to the chocolate and butter that have been melted together. This helps bring down the temperature and avoid the risk of curdling the eggs.

    Three eggs added to brownie batter in a glass bowl. A whisk inside. White marble surface.

    The eggs are added all at once and mixed thoroughly. No need to beat but make sure they are very well integrated.

    Ground hazelnuts and flour on a glass bowl with brownie batter on a white marble surface.

    The rest of the dry ingredients are added together. The ground hazelnuts add texture.

    Stirring hazelnut brownie batter in a glass bowl on a white marble surface.

    The ingredients are stirred until no dry spots remain.

    Baking

    Preparing the pan

    It should be buttered or sprayed with baking spray (containing flour).

    I also line it with a strip of parchment paper wide as the pan, covering the bottom and two sides. The other two will remain greased but not lined (images below). This will help remove the block of brownies from the pan.

    Brownie batter in a square metal pan on a white marble surface.

    Pour the brownie batter into the greased and lined pan and even out the surface.

    Baked brownies in a dark metal square pan on a wire rack. White marble surface.

    Bake according to the instructions in the recipe card and let cool completely on a wire rack before removing from the pan.

    Vintage Kitchen tip: don't overbake them so you'll have fudgy and not dry, cakey brownies. Take them out while they still jiggle in the center. They will keep firming up with the residual heat as they cool down.

    Top view of cut block of brownies on parchment paper on a light blue surface. Loose hazelnuts and chocolate chips.

    Variations

    The combination of hazelnuts and chocolate is unparalleled, but you can vary this recipe.

    • Spiced - add ½ teaspoon cinnamon or a large pinch of nutmeg or mace. All pair well.
    • Other nuts - use ground almonds, cashews, walnuts, or pecans. They will all bring a unique flavor.
    • Kid-friendly - omit the liqueur and increase the vanilla extract or use hazelnut extract for an extra punch.

    Storage

    • Room temperature: even if you keep them on the counter, chill them first so they firm up. They keep for 3 days well covered.
    • Refrigerator: keep them for a week, always well covered (plastic wrap or airtight container) to avoid dryness.
    • Freezer: they keep for a month. I wrap them in plastic and then foil and label it. It's a great brownie to have frozen for last-minute desserts or cravings.
    Hand holding bitten brownie with whole block of brownies below them.

    Kitchen notes

    • Organization: read the recipe first and ensure you have ingredients at the correct temperatures, equipment, and enough workspace. This will make the process so much easier!
    • Baking time: keep in mind that all ovens and pans are different, even if they look the same or very similar. The baking time in my recipes is as accurate as it can be, but it might take you more or less time. You can use a thermometer(like the OXO oven thermometer) to check that your oven is at the right temperature. I recommend you keep track of how your oven works and what tiny details you might need to adjust. 
    • Hazelnuts: you can also sprinkle some chopped hazelnuts on top before baking. I find that the amount in the batter is more than enough.
    • Chocolate chips: milk or white chocolate chips (about ⅓ cup) can be added to the batter for sweeter brownies.
    • Chilling: I like to refrigerate them for a few hours before eating at room temperature, as I find the flavor is better. And if they're very fudgy, I put them in the freezer and eat them directly.
    • Flour: I tried it with other types, from all-purpose to buckwheat flour. I still prefer rice flour for the consistency it brings. I still use it, even if I don't care to make them gluten-free.

    Related recipes you might like:

    • Dulce de Leche Brownies
    • Peanut Butter Swirl Brownies (with video!)
    • Whisky Raisin Walnut Brownies
    • Walnut Brownie Recipe

    Let me know in the comments below if you made this recipe and loved it and if you had issues so we can troubleshoot together. I love to hear what you think, always. Thanks for being here. It's much appreciated.
    You might also consider subscribing to our FREE email series to Boost your Home Baking Skills! And our regular newsletter.
    And let's connect via Facebook, Instagram, and Pinterest.

    Print
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    Close up stack of three brownies on a white surface with light blue and cream colored background.

    Fudgy Hazelnut Brownies

    Print Recipe
    Save Recipe Recipe Saved

    These are fudgy, easy to make, and incredibly rich, one of the best brownies I ever made. And they happen to be gluten-free. They keep well and can be frozen. I hope you make them soon because they're fabulous!

    • Total Time: 40 minutes
    • Yield: 12 squares

    Ingredients

    • ½ cup (110g) unsalted butter
    • 8.5 oz (240g) semi-sweet chocolate, chopped
    • 3 eggs, at room temperature
    • ¾ cup (150g) sugar
    • ¼ cup rice flour
    • ¼ teaspoon salt
    • ½ teaspoon baking powder
    • 1 cup hazelnuts, ground
    • 1 teaspoon vanilla extract
    • 1 tablespoon hazelnut liqueur (optional)

    Instructions

    1. Preheat oven to 350ºF /180ºC.
    2. Line an 8-inch square pan with aluminum foil or parchment paper hanging over two sides, for easier unmolding. Or simply spray or butter it.
    3. Melt butter and chocolate in a large bowl. I use the microwave, 30 seconds at a time stirring well in between.
    4. Add sugar and eggs, one at a time, mixing very well but not beating.
    5. Add ground hazelnuts, rice flour, salt, and baking powder. Mix well.
    6. Add vanilla, and liqueur and mix just until blended.
    7. Spread on the prepared pan and even out the top.
    8. Bake for about 25 minutes, until it is slightly puffed and the center still jiggles a little. Don't overbake.
    9. Cool completely on a wire rack.
    10. For easier cutting, put 30 minutes in the fridge. Make sure the unlined sides are not stuck and lift the whole block with the help of the paper. 
    11. Cut into squares. 
    12. You can keep them at room temperature for a few days, in the fridge for a week, or freeze them for a month.

    Notes

    • Organization: read the recipe first and ensure you have ingredients at the correct temperatures, equipment, and enough workspace. This will make the process so much easier!
    • Baking time: keep in mind that all ovens and pans are different, even if they look the same or very similar. The baking time in my recipes is as accurate as it can be, but it might take you more or less time. You can use a thermometer(like the OXO oven thermometer) to check that your oven is at the right temperature. I recommend you keep track of how your oven works and what tiny details you might need to adjust. 
    • Hazelnuts: you can also sprinkle some chopped hazelnuts on top before baking. I find that the amount in the batter is more than enough.
    • Chocolate chips: milk or white chocolate chips (about ⅓ cup) can be added to the batter for sweeter brownies.
    • Chilling: I like to refrigerate them for a few hours before eating at room temperature, as I find the flavor is better. And if they're very fudgy, I put them in the freezer and eat them directly.
    • Flour: I tried it with other types, from all-purpose to buckwheat flour. I still prefer rice flour for the consistency it brings. I still use it, even if I don't care to make them gluten-free.
    • Author: Paula Montenegro
    • Prep Time: 15 minutes
    • Cook Time: 25 minutes
    • Category: Brownies & Bars
    • Method: Baking
    • Cuisine: American

    Nutrition

    • Serving Size: 1/12
    • Calories: 313
    • Sugar: 25 g
    • Sodium: 67.8 mg
    • Fat: 20.5 g
    • Carbohydrates: 30.5 g
    • Fiber: 2.5 g
    • Protein: 4.7 g
    • Cholesterol: 66.8 mg

    Keywords: hazelnut brownies

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    More Bar & Brownie Recipes

    • Chocolate Chip Oatmeal Bars
    • Lemon Blondies
    • Walnut Squares
    • Easy Apple Crumb Bars

    About Paula Montenegro

    I'm Paula, a baker for more than 30 years and your designated recipe developer, sharing the best ones here with simple ingredients + easy-to-follow instructions.

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    1. David Scott Allen says

      November 28, 2022 at 8:26 am

      The brownies sound wonderful — chocolate and hazelnut is a wonderful combination.l also checked out the hazelnut liqueur recipe — I have to make that this winter for sure!

      Reply
    2. Billa Schleicher says

      December 17, 2017 at 7:52 am

      Hi! My hazelnut liquor is currently brewing and I am going to make the brownies next weekend. Just looked to make a shopping list and the instructions talk about "melting the butter and the chocolate" - but those two ingredients are not on the ingredients list!!! So, how much butter and how much chocolate, please?

      Reply
      • Paula Montenegro says

        December 18, 2017 at 8:31 am

        Hi Billa! I updated the recipe. Thanks for letting me know!

        Reply
        • Billa Schleicher says

          December 23, 2017 at 9:01 am

          Thank you! Merry Christmas!

        • Paula Montenegro says

          December 24, 2017 at 8:48 am

          Happy holidays Billa!

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