- 2 T. flour
- 1/2 c. milk
- 1/4 c. butter
- 1/4 c. shortening
- pinch salt
- 1/2 c. granulated sugar
- 1/2 t. vanilla
- Mix flour and milk until smooth. Cook slowly until thick (like toothpaste) over low heat. Stir constantly.
- Remove from heat and let cool completely.
- Add butter and shortening, blend at low speed.
- Add the salt, beat until smooth and fluffy at high speed. Blend in sugar at high speed.
- Add the vanilla. Beat one minute more at high speed.