INGREDIENTS
8 tbsp
unsalted butter, cut into cubes
9 oz
semisweet or bittersweet chocolate, finely chopped
3 oz
unsweetened chocolate, finely chopped
1/2 cup
all-purpose flour
1/2 tsp
baking powder
1/4 tsp
salt
3
large eggs, at room temperature
1 1/4 cups
sugar
2 tsp
vanilla extract
2 cups
semisweet chocolate chips
sea salt for sprinkling