Ingredients:
1/2 cup (115g) salted butter*
8 ounces (228g) coarsely chopped quality semi-sweet chocolate*
3/4 cup (150g) granulated sugar
1/4 cup (50g) light brown sugar
3 large eggs
1 teaspoon vanilla extract
1/2 cup + 2 Tablespoons (80g) all-purpose flour (measure this accurately)
2 Tablespoons (11g) unsweetened cocoa powder
1/4 teaspoon salt
1 cup (180g) semi-sweet chocolate chips
MILK CHOCOLATE FROSTING (OPTIONAL)
1 and 3/4 cups (210g) confectioners' sugar
1/4 cup (22g) unsweetened cocoa powder
1/2 cup (115g) unsalted butter, softened to room temperature
2 Tablespoons (30ml) heavy cream or half-and-half
1 teaspoon vanilla extract
salt, to taste