I have been on a search for the perfect icing for cookies. I wanted something a little different. This one turned out perfect, and I think you could use it for cupcakes or cakes as well. Very easy to make. It is a little deceptive about how much it makes.
Buttercream Icing Recipe
4 cups confectioners sugar
1 cup unsalted butter room temp
1 teaspoon vanilla
4 Tablespoons milk