Instructions

  1. In a small saucepan blend flour and milk.
  2. Cook stirring constantly until mixture bubbles.
  3. Cool.
  4. In a large bowl, cream shortening, butter and sugar with a mixer until fluffy.
  5. Add vanilla and salt, blending well.
  6. On medium speed beat in cooled flour mixture in small portions (teaspoonful at a time), beating well after each addition.
  7. Continue beating until light and fluffy.