Williamsburg Butter Frosting Be The First To Review By Anonymous recipe Creamy butter frosting made with orange liqueur. Williamsburg Butter Frosting Ingredients 1/2 cup butter, softened12 teaspoons orange liqueur1 tablespoon orange zest4 1/2 cups confectioners’ sugar Instructions 1 In a large bowl, blend butter with confectioners’ sugar. Stir in orange liqueur and orange zest. Beat until light and fluffy. Use to frost cooled cake.