Brandied Cocoa-Nut Squares

In a small saucepan heat 1/2 cup butter over medium heat until melted. Add 1/2 cup sugar, 1/4 cup unsweetened baking cocoa, and egg. Cook until the mixture boils, stirring constantly. Boil and stir for 1 minute then remove from the heat. Stir in vanilla wafer crumbs, flaked coconut, and 1 teaspoon brandy. Press into an ungreased 13 x 9-inch baking pan. In a medium mixer bowl beat together powdered sugar, 3 tablespoons unsweetened baking cocoa, 3 tablespoons softened butter, water, and 1/2 teaspoon brandy. Spread over the brownie and refrigerate for 1 hour, or until firm.