Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C). Generously butter an 8x8-inch metal baking pan, then line it with parchment paper, leaving an overhang on two opposite sides. This creates a sling for easy removal, which is crucial for clean, aesthetic slices.
- In a heatproof bowl set over a saucepan of barely simmering water (double boiler), melt the butter and chopped dark chocolate together. Stir gently until completely smooth and glossy. Remove from heat and let cool for 5 minutes. This gentle melting prevents the chocolate from seizing and ensures a silky base.
- In a large bowl, whisk together both sugars. Add the room-temperature eggs one at a time, whisking vigorously for a full 30 seconds after each addition. This is the secret to the crackly top—you're dissolving the sugar and incorporating air. Whisk in the vanilla extract.
- Slowly pour the warm (not hot) chocolate mixture into the egg-sugar mixture, whisking constantly until fully combined and thick. Sift the flour, cocoa powder, salt, and espresso powder (if using) directly into the bowl. Use a rubber spatula to fold the dry ingredients in until just combined and no streaks of flour remain; do not overmix.
- Pour the thick batter into your prepared pan, spreading it evenly into the corners. Bake for 30-35 minutes. The brownies are done when a toothpick inserted into the center comes out with a few moist crumbs attached, not wet batter. Trust me, this is the key to fudginess. Let cool completely in the pan on a wire rack.
Notes
Chef's Tips:
• For the cleanest slices, chill the completely cooled brownies for 1 hour before cutting with a hot, dry knife.
• Do not substitute oil for butter; butter is essential for flavor and texture.
• Serve slightly warm with a sprinkle of flaky sea salt and a scoop of vanilla ice cream.
Food Safety:
• Ensure eggs are cooked through; the internal temperature should reach 160°F (71°C).
• Store cooled brownies in an airtight container at room temperature for up to 3 days.
