1 c. milk
3 tbsp. flour

Make a white sauce of above. It will be very thick. Boil for 1 few minutes. Cool completely.

1/2 lb. (2 sticks) butter
1 c. granulated sugar
2 tsp. vanilla

Cream butter. Add sugar and vanilla. Combine white sauce and beat at high speed on food mixer for about 5 minutes. Makes enough to fix and frost a 2 or 3 layer cake.