Rich, chewy, and deeply chocolatey, these fudgy brown butter brownies are made with nutty browned butter, dark chocolate, and cocoa for the ultimate indulgent treat.
¾ cup (170g) unsalted butter
1 cup (200g) granulated sugar
½ cup (100g) brown sugar
2 large eggs + 1 egg yolk
1 tsp vanilla extract
½ cup (50g) unsweetened cocoa powder
100g dark chocolate (at least 60%), melted
½ cup (60g) all-purpose flour
½ tsp salt
Optional: flaky sea salt for topping
Preheat oven to 325°F (163°C). Line an 8×8-inch pan with parchment paper.
In a saucepan, melt butter over medium heat. Stir continuously until browned and fragrant. Cool slightly.
In a bowl, whisk sugars and eggs for 2–3 minutes until thick and pale.
Slowly add browned butter and vanilla, whisking constantly.
Stir in melted chocolate and cocoa powder until smooth.
Fold in flour and salt gently — do not overmix.
Pour batter into prepared pan, smooth the top.
Bake for 30–35 minutes or until a toothpick comes out with moist crumbs.
Cool completely before slicing.
Add espresso powder for deeper flavor. Store in an airtight container for 3 days or freeze up to 2 months.