# Ingredient List:
→ Chocolate Mixture
01 - 7 oz high-quality dark chocolate (70% cocoa), chopped
02 - 1/2 cup unsalted butter, cut into pieces
→ Wet Ingredients
03 - 1 cup granulated sugar
04 - 1/4 cup light brown sugar, packed
05 - 3 large eggs, room temperature
06 - 1 tsp pure vanilla extract
→ Dry Ingredients
07 - 3/4 cup all-purpose flour
08 - 1/3 cup unsweetened cocoa powder
09 - 1/2 tsp fine sea salt
→ Topping
10 - 1/2 tsp flaky sea salt
# Steps:
01 - Preheat oven to 350°F. Line an 8-inch square baking pan with parchment paper, leaving an overhang for easy removal.
02 - Combine dark chocolate and butter in a heatproof bowl set over simmering water. Stir until smooth, then remove from heat and let cool slightly.
03 - Whisk together granulated sugar, brown sugar, eggs, and vanilla extract in a large bowl until pale and thick, about 2 to 3 minutes.
04 - Whisk the melted chocolate mixture into the egg mixture until well incorporated.
05 - Sift flour, cocoa powder, and fine sea salt into the wet mixture. Fold gently with a rubber spatula until just combined, avoiding overmixing.
06 - Pour batter into the prepared pan and smooth the surface. Evenly sprinkle flaky sea salt over the top.
07 - Bake for 28 to 32 minutes until a toothpick inserted in the center comes out with moist crumbs.
08 - Cool completely in the pan on a wire rack, then lift out using parchment overhang and cut into 16 squares.