German Chocolate Brownies

Name: German Chocolate Brownies
Yield: Makes 4 dozen.
Cuisine: German
Ingredients: 2 tbsp. unsalted butter, softened to room temperature; 4 tbsp. or more milk, whole or 2 percent; ½ cup confectioners’ sugar, sifted; 1 cup sweetened coconut, toasted; 1 cup sweet baking chocolate or milk chocolate, coarsely chopped; 1 tsp. salt; 1 tsp. baking powder; 1¼ cups unbleached, all-purpose flour; 1 tsp. pure vanilla extract; 4 large eggs, lightly beaten; 4 oz. unsweetened chocolate, coarsely chopped; 2 cups granulated sugar; ⅔ cup unsalted butter