These dark cocoa brownies are deeply fudgy, dense, and rich, with bold chocolate flavor and a soft, almost truffle-like center. Made in an 8-inch pan with simple pantry ingredients, they’re perfect for serious chocolate lovers who prefer their brownies on the indulgent side.
Preheat oven to 350°F (175°C). Grease an 8-inch square baking pan.
In a medium bowl, whisk together the flour, cocoa powder, and salt. Set aside.
Place the melted butter and sugar in a large mixing bowl. Using a spoon, mix until combined. Add the eggs and vanilla extract, and stir until well mixed.
Add the flour mixture in three portions, mixing just until the batter is combined.
Transfer the brownie batter to the prepared pan. Use a spatula to spread the batter evenly in the pan.
Bake 25 to 30 minutes, or until a pick inserted into the center of the brownies comes out with moist crumbs.
Cool the brownies for at least 15 minutes before cutting into bars.
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Notes
Cocoa powder: Both natural and Dutch-process cocoa will work, but a good-quality dark cocoa gives these brownies their deepest color and boldest chocolate flavor. There are several brands of dark cocoa powder available. For these brownies, I prefer King Arthur Flour's Double Dutch Dark Cocoa.
Measuring matters: Cocoa powder packs easily, so use a light hand when measuring for the fudgiest texture.
Doneness: A toothpick should come out with moist crumbs, not clean, to keep the center soft and dense.
Clean cuts: For neat squares, let the brownies cool completely or chill briefly before slicing.
Storage: Store brownies in an airtight container at room temperature for up to 3 days. For longer storage, wrap individual squares well and freeze for up to 2 months. Thaw at room temperature, or warm briefly for a soft, fudgy texture.