Blender Chocolate Frosting
["6 oz. unsweetened baking chocolate", "1 1/2 c. sugar", "1 c. evaporated milk", "1 tsp. vanilla", "6 Tbsp. margarine"]
["Cut up chocolate in small pieces. Put in blender. Add other ingredients. Cover. Blend on low speed until larger pieces are chopped. Stop and stir with long-handled spoon. Cover and blend on high speed until thick and creamy. Makes 3 cups."]
["chocolate", "sugar", "milk", "vanilla", "margarine"]