Ingredients
Method
- Preheat oven to 175°C / 350°F. Line an 8×8 inch (20×20cm) metal pan with parchment paper, leaving overhang on two sides.
- Melt butter and chopped chocolate together over a double boiler or in the microwave in 30-second bursts, stirring between each. Stir until completely smooth. Cool for 10 minutes.
- Add sugar to the cooled chocolate mixture and whisk vigorously for 1 to 2 minutes.
- Add eggs and extra yolk one at a time, whisking 30 seconds after each. Add vanilla and whisk until the batter is glossy and slightly thickened.
- Sift flour, cocoa powder, salt, and baking powder directly into the bowl. Fold with a rubber spatula until no dry streaks remain — about 20 strokes. Stop immediately.
- Pour into the prepared pan and smooth to the edges. Bake 25 to 28 minutes — toothpick inserted in the center should come out with moist fudgy crumbs, not wet batter and not clean.
- Cool in the pan on a wire rack for at least 1 hour. For cleanest cuts, refrigerate 30 minutes, then cut with a hot dry knife wiped between cuts.
Notes
Use a bar of dark chocolate, not chips — chips contain stabilizers that reduce fudginess.
• Weigh the flour — 120g exactly. Extra flour is the most common cause of cakey brownies.
• A toothpick with moist crumbs = perfect. Clean toothpick = already overbaked.
• Add flaky sea salt to the surface just before baking for extra depth.
• Brownies improve on day two — the flavor deepens and the texture becomes more fudgy.