17. Mark is the Head Pastry Chef at The Steel Whisk. One of the most popular items Mark makes, is his famous Buttercream icing. This icing is used for many different items in the bakery. Mark wants to know the cost per ounce of his icing. Complete the standardized recipe cost sheet below so Mark can know his actual icing cost. Fill in all dark grey boxes. A. What would the portion cost be for buttercream icing used to frost cupcakes that require 1.5 ounces of icing per cupcake? (8 points) Buttercream Icing Recipe Cost Sheet #105 Ingredient Purchase Unit Purchase Recipe Unit Cost Amount Ingredient Cost Confectioners' sugar 25 lb. bag $14.75 1.5 lb. Whipping cream Quart $22.10 1 pt. Butter Pound $3.25 7 oz. Vanilla Quart $23.47 3 T. Total cost Recipe # 105 Recipe yield (oz.) 36 Portion cost Portion size (oz.) 1 Costed on 1-15-20xx