6 ounces unsweetened chocolate |
16 ounces bittersweet chocolate |
6 tablespoons butter |
2 1/4 cups plus 1 tablespoon sugar |
5 eggs |
1/2 cup plus 3 tablespoons all-purpose flour |
1 tablespoons baking powder |
pinch salt |
1 1/4 cups plus 1 tablespoon walnuts, chopped |
16 ounces bittersweet chocolate, chopped |