Aunt Patty's sugar cookie icing

  • 4 cups powdered sugar
  • 6 tablespoons softened butter
  • 3 tablespoons milk
  • 1 teaspoon vanilla
  • food coloring

Beat 1 cup sugar with butter.  Slowly add rest of sugar, alternating with milk as needed.  Add vanilla.  Divide.  Add food coloring.  Add icing to cookies.