Fudgy Chocolate Brownie

1. Prep the pan and oven. Heat oven to 350°F. Line an 8x8-inch metal pan with parchment, leaving a little overhang for lifting. Lightly butter the parchment corners if you want it extra secure.

   Pan note: Metal pans bake the most evenly here. If you are using a glass or ceramic pan, drop the oven to 325°F and expect a slightly longer bake. Use the doneness cues, not the clock.

2. Melt butter and chocolate. In a medium microwave-safe bowl, melt the butter and chopped chocolate in 20 to 30 second bursts, stirring between, until smooth. (You can also do this in a small saucepan over low heat.)

   

3. Whisk in the sugars. While the mixture is still warm, whisk in the granulated sugar and brown sugar until the batter looks glossy and slightly thickened, 30 to 60 seconds.

4. Add eggs and vanilla. Whisk in the eggs and egg yolk one at a time, then whisk in the vanilla. Whisk just until smooth. Keep it sleek, but do not whip it like cake batter.

   

5. Fold in dry ingredients. Add cocoa powder, salt, and flour. Switch to a rubber spatula and fold until just combined. The batter will be thick and fudgy. If using chocolate chunks or chips, fold them in now.

   Mix-in guideline: For add-ins like nuts, chips, or swirls, keep total extras to about 3/4 to 1 cup so the brownies stay dense and fudgy, not crumbly.

6. Bake. Scrape batter into the prepared pan and smooth the top. Bake 28 to 34 minutes, until the edges are set and a toothpick in the center comes out with thick, moist crumbs.

   

7. Cool, then slice. Let brownies cool in the pan for at least 1 hour for neater slices. Lift out using the parchment. If you want ultra-clean edges, chill for 30 minutes, then slice. Sprinkle flaky salt on top if you like. Slice into 16 squares.

   

Practical Tips and Variations

• For maximum fudginess: Do not overbake. If you are unsure, pull them early. Residual heat finishes the job.
• Want thicker brownies? Use a 7x7-inch pan if you have one, or use a loaf pan for extra thick bars. Both will need a longer bake, so start checking around 30 minutes and use the toothpick cue. (If you use a larger pan like 9x9, they will bake up thinner.)
• Espresso boost: Add 1 to 2 teaspoons instant espresso powder with the cocoa. It will not taste like coffee, just louder chocolate.
• Nut option: Fold in 1/2 cup toasted walnuts or pecans for crunch.
• Peanut butter swirl: Dollop 1/3 cup peanut butter on top and swirl with a knife before baking.
• Clean slices: Chill for 30 minutes, then cut with a warm knife (run it under hot water, wipe dry, slice, repeat).