- 1
Preheat your oven to 175°C / 350°F. Line a 20 cm / 8 in square pan with parchment, leaving a little overhang so the brownies lift out easily later.
- 2
Put the butter and chopped dark chocolate in a heatproof bowl. Melt gently over barely simmering water, or microwave in short bursts, stirring often until smooth and glossy.
- 3
In a large bowl, whisk together the granulated sugar, brown sugar, and eggs for 2–3 minutes. The mixture should look slightly lighter and smoother; this helps create the shiny top.
- 4
Whisk in the vanilla. Slowly pour in the warm melted chocolate mixture and whisk until fully combined.
- 5
In a separate bowl, mix the flour, cocoa powder, salt, and espresso powder if using. This keeps the dry ingredients evenly distributed.
- 6
Fold the dry ingredients into the chocolate mixture using a spatula. Mix only until no dry streaks remain. Do not overmix, or the brownies can become cakier.
- 7
Fold in the chocolate chips or chunks for extra pockets of melted chocolate.
- 8
Pour the batter into the lined pan and smooth the top. Tap the pan lightly on the counter to release large air bubbles. Sprinkle lightly with flaky sea salt.
- 9
Bake for 28–32 minutes. The edges should look set, while the center should still be slightly soft. A toothpick inserted in the middle should come out with moist crumbs, not wet batter.
- 10
Let the brownies cool completely in the pan. Lift them out using the parchment, then slice with a warm clean knife for sharp, elegant squares.
- 11
Garnish / Serving Suggestion
- 12
Serve slightly warm or at room temperature with a dusting of cocoa, a pinch of flaky sea salt, and fresh raspberries. For a gourmet finish, pair with vanilla bean ice cream or lightly whipped cream.
- 13
Notes
- 14
For extra fudgy brownies, bake closer to 28 minutes.
- 15
For cleaner slices, chill for 20–30 minutes before cutting.
- 16
Use good-quality dark chocolate; it makes a noticeable difference.
- 17
Store in an airtight container for up to 4 days.