2 1/2 Tbsp Flour
1/2 Cup Milk
1/4 Cup Shortening
1/4 Cup Butter or Margarine (go with the butter!)
1/2 Cup Sugar or 1 Cup Icing Sugar (again... go with the icing sugar!)
1/8 Tbsp Salt
1 Tbsp Vanilla
Combine the flour and milk in a double boiler; cook to thick paste...... 2 or 3 minutes usually. Cover with wax paper and allow to cool.
Beat shortening, butter, sugar and salt.
Add cooked paste to the base mixture and beat for about 10 to 15 minutes. Double the recipe if needed (ie: layer cakes)
This stuff spreads like a dream and isn't too sweet - it's the secret recipe of a local bakery famous for it's cakes for over 85 years......