INGREDIENTS
1
cup granulated sugar
12
ounces bittersweet chocolate, coarsely chopped (2 1/4 cups)
3/4
ounce(1/4 cup) unsweetened natural cocoa powder, sifted if lumpy; more for the pan
6
ounces(3/4 cup) unsalted butter, cut into six pieces; more for the pan
5
large eggs
1 1/2
teaspoons pure vanilla extract
1/4
teaspoon table salt
4
ounces bittersweet chocolate, coarsely chopped (3/4 cup)
1 1/2
ounces(3 tablespoons) unsalted butter