Bakery Frosting
["1/4 c. shortening", "1/4 c. butter", "1 egg white", "2 Tbsp. flour", "2 Tbsp. milk", "1 3/4 c. powdered sugar", "2 tsp. vanilla", "pinch of salt"]
["Place all in bowl and beat with electric beater about 5 minutes or until light.", "Yields enough for a layer cake."]
["shortening", "butter", "egg", "flour", "milk", "powdered sugar", "vanilla", "salt"]