Chocolate Blender Frosting
["1 c. evaporated milk", "1 1/2 tsp. vanilla", "1 1/2 c. sugar", "5 blocks chocolate, cut in small pieces", "6 Tbsp. margarine"]
["Put in blender in order given.", "Blend on medium speed until blended.", "Blend on high until thick and creamy.", "Stop and stir frequently."]
["milk", "vanilla", "sugar", "chocolate", "margarine"]