Cake Frosting
["5 Tbsp. flour", "1 c. milk", "1/4 tsp. salt", "1/2 c. shortening (Crisco)", "1/4 lb. margarine", "1 c. sugar", "1 tsp. vanilla"]
["Cook flour, milk and salt to a paste; let cool.", "Beat shortening, margarine and sugar until fluffy.", "Add together; beat. Add vanilla."]
["flour", "milk", "salt", "shortening", "margarine", "sugar", "vanilla"]