Adapted from Fat Witch Brownies: Brownies, Blondies and Bars from New York's Legendary Fat Witch Bakery via Bake or Break blog
14 ounces butter (1 3/4 sticks)
4 ounces bittersweet chocolate, chopped or 1 cup plus 2 tablespoons bittersweet chocolate chips
1 1/4 cups sugar
1 teaspoon vanilla
1/2 cup plus 2 tablespoons flour
1/2 cup nuts, chocolate chips, or Heath bar chunks, optional
butter and chocolate in microwave safe bowl, starting and stopping at 30
second intervals to stir, till chocolate is melted and mixture is
smooth. Set aside to cool.
Beat in sugar, eggs and vanilla. Add cooled chocolate, mix in gently. Sift flour into bowl and mix just to combine. Stir in optional add ins if desired. Pour batter into prepared pan. Bake 30-35 minutes or till toothpick inserted into the center of the brownies comes out with just dry crumbs. Cool before cutting.