Fudgy Walnut Brownies Recipe

How to make ultra-fudgy, intensely chocolate walnut brownies with an easy, indulgent recipe. This version is simple and quick to prepare at home — the perfect dessert for anyone who loves a rich, fudgy brownie with crunchy walnut pieces.

brownies with walnuts cut into pieces

If you love ultra-fudgy chocolate brownies, you won’t be able to resist these walnut brownies. They combine a deeply chocolatey base with a fudgy texture and crunchy walnut chunks for contrast. This classic American-style brownie is easy to make with simple pantry ingredients and works for a casual snack, birthday party, or an elegant dessert served with ice cream.

Notes on the ingredients

You will need the following ingredients to make these chocolate walnut brownies. Notes below will help you choose the best options for a rich, fudgy result:

  • Butter: Use unsalted butter so you can control the salt level.
  • Chocolate: Choose good-quality dark baking chocolate (around 54–64% cocoa) for depth of flavor.
  • Eggs: Large eggs at room temperature help create a glossy, aerated batter.
  • Sugars: A mix of white granulated sugar and brown sugar (light or dark) adds sweetness and a chewy, caramel note.
  • Flour: Plain all-purpose flour (T45 or similar) works well.
  • Cocoa powder: Unsweetened cocoa powder intensifies the chocolate flavor.
  • Vanilla and salt: Essential for balancing and highlighting the chocolate taste.
  • Walnuts: Use walnut halves or pieces (English/Walnut) for crunch. You can substitute pecans, hazelnuts, or almonds if preferred.
brownie ingredients in bowl

How to make the walnut brownies

Step 1: Chop the dark baking chocolate and place it with the butter in a heatproof bowl. Melt gently over a bain-marie or short bursts in the microwave, stirring until smooth and fully combined. Let the mixture cool slightly.

bowl with chocolate and butter

Step 2: In a large bowl, whisk the eggs with the white sugar, brown sugar, and vanilla extract. Beat with an electric mixer at medium speed for about 2 minutes, until the mixture becomes lighter, voluminous, and glossy.

eggs and sugar in a large bowl

Step 3: Add the melted chocolate-butter mixture to the beaten eggs and sugar, then whisk briefly until well combined and smooth.

chocolate being folded into batter

Step 4: Sift in the flour, unsweetened cocoa powder, and salt, and fold gently with a flexible spatula just until incorporated. Fold in the coarsely chopped walnuts so they are evenly distributed through the batter.

dry ingredients mixed in bowl

Step 5: Preheat your oven to 180°C (350°F). Line a 20 x 20 cm (8 x 8 in) square baking pan with parchment paper for easy removal. Pour the batter into the prepared pan and smooth the surface with a spatula or the back of a spoon.

brownie batter in a pan

Step 6: Scatter a few extra walnut pieces on top and bake for 30–35 minutes. The top should look shiny and set while the center remains fudgy. Test with a toothpick inserted in the center — it should come out with moist crumbs, not wet batter.

Cooling and serving: Remove from the oven and let the brownies cool completely in the pan before lifting them out on the parchment and cutting into 16 squares. Serve warm with vanilla ice cream, custard, or simply on their own.

brownies with walnuts on a table

How to serve this dessert

  • With ice cream: A scoop of vanilla ice cream creates a lovely hot–cold contrast with the fudgy brownie.
  • Drizzle: Warm chocolate sauce or salted caramel adds extra indulgence.
  • Whipped cream and berries: Light whipped cream and fresh berries brighten the richness.
  • Fruit coulis: Raspberry or cherry sauce provides a pleasant tart counterpoint to the chocolate and walnuts.

Tips for this recipe

  • Choose fresh walnuts: Rancid nuts will spoil the flavor—smell them first to ensure freshness.
  • Toast for extra flavor: Lightly toast the walnuts in a dry pan or the oven before chopping for more depth.
  • Pick the right chocolate: Use good-quality dark chocolate (50–70% cocoa) for best results.
  • Room temperature ingredients: Eggs and butter at room temperature incorporate more evenly.
  • Don’t overbake: Slight underbaking yields a fudgier center; residual heat will finish the cooking as the brownies cool.
  • Clean cuts: For neat slices, chill the cooled brownies for an hour or heat and wipe a knife between cuts.

Storage and freezing

At room temperature: Store brownies in an airtight container away from moisture for up to 4–5 days.

In the freezer: Allow the brownies to cool completely, then wrap whole or portioned pieces tightly and freeze for up to 3 months. Defrost at room temperature or use your microwave’s defrost setting for a quick thaw.

Variations & substitutions

  • Add cookie pieces, chocolate chips, or crushed cookies for different textures.
  • Stir in a swirl of peanut butter or Nutella before baking for a nutty twist.
  • Top with a cheesecake layer to make brownie cheesecake bars.
  • Make brookies by combining a cookie layer with the brownie base.
  • Use white chocolate for a blondie-style variation.
  • Substitute walnuts with pecans, hazelnuts, or almonds to change the flavor profile.

Ingredients (20 x 20 cm pan — 16 servings)

  • 250 g dark baking chocolate
  • 115 g unsalted butter
  • 4 large eggs, room temperature
  • 200 g granulated sugar
  • 150 g brown sugar
  • 2 tsp vanilla extract
  • 90 g all-purpose flour
  • 30 g unsweetened cocoa powder
  • ½ tsp salt
  • 100 g chopped walnuts

Method

  1. Preheat oven to 180°C (350°F). Line a 20 x 20 cm square pan with parchment paper.
  2. Melt chocolate and butter together until smooth; cool slightly.
  3. Beat eggs with white and brown sugar and vanilla until light and glossy (about 2 minutes).
  4. Fold in the melted chocolate mixture until homogeneous.
  5. Sift in flour, cocoa, and salt; fold gently to combine.
  6. Fold in the walnuts, pour into the prepared pan, smooth the top, and scatter extra walnuts if desired.
  7. Bake 30–35 minutes until the top is set and shiny but the center remains fudgy. A toothpick should come out with moist crumbs.
  8. Cool completely in the pan, then lift out, slice into 16 squares, and serve.

More brownie ideas

Try other brownie styles by swapping mix-ins or toppings: plain fudgy brownies, candy-studded brownies, marbled dark and white chocolate brownies, brookies (brownie + cookie), or blondies made with white chocolate.

brownies with walnuts

I hope you enjoy this walnut brownie recipe! If you try it, leave a comment or rating to share how it turned out. Happy baking!