Kahlua Chocolate Frosting - cooking recipe

Ingredients

3 1/2 cups confectioners' sugar
1/2 cup butter, softened
3 (3 ounce) packets nestle toll house pre-melted unsweetened chocolate (or baking squares, melted)
1 teaspoon vanilla extract
1/8 teaspoon salt
2 tablespoons milk
2 tablespoons Kahlua
1 egg

Preparation

With mixer, cream butter with milk, Kahlua, vanilla, chocolate, and salt.
Beat in confectioners' sugar a little at a time.
Blend in egg (doing this last gives the frosting a nice sheen).
Spread on cooled cake and refrigerate.