In a small saucepan, melt butter over low heat. Continue heating till the butter just turns a delicate brown (don't overbrown). Remove from the heat; pour into a medium mixing bowl. Add sifted powdered sugar, milk and vanilla. Beat with an electric mixer till combined. Beat in some additional milk (1 teaspoon at a time), as needed for a spreading consistency. Add enough yellow (about 6 drops) and red (about 1 drop) food coloring to tint frosting orange. Makes about 1-3/4 cups.