1/3 c. flour or Bisquick
1/2 c. milk
1/2 c. sugar
1/2 c. butter
1/4 c. shortening
1 to 2 boxes powdered sugar
1 tsp. vanilla
3 tbsp. Nestles Quik

Boil Bisquick, milk and sugar until thick. Beat butter and shortening together and add milk mixture, powdered sugar, vanilla and Nestles Quik.