For the brownie batter
01 -
1 cup (226 g) unsalted butter, plus more for the pan if needed
02 -
6 oz (170 g) dark chocolate, chopped
03 -
1 cup (200 g) granulated sugar
04 -
1/2 cup (105 g) packed light brown sugar
05 -
3 large eggs, room temperature
06 -
2 teaspoons vanilla extract
07 -
3/4 cup (95 g) all-purpose flour
08 -
1/2 cup (45 g) unsweetened cocoa powder
09 -
3/4 teaspoon fine salt
For the caramel and finish
10 -
3/4 cup (225 g) thick caramel sauce or dulce de leche
11 -
1 to 1 1/2 teaspoons flaky sea salt, divided