Home » Recipes » Marshmallow Cake Filling (Thomas) Suggestions? Marshmallow Cake Filling (Thomas) - Recipe Cost Ingredients Per Recipe Qty Common Price Price per Recipe 1 c. Sugar 1 cup $1.44 per pound $0.63 1 c. White corn syrup 1 cup $3.99 per 16 fluid ounces $2.00 2 Tbsp. Unflavored gelatin 2 tbsp n/a 1/2 c. Cool water 1/2 cup n/a Total Recipe $2.63 Please Log In or Sign Up to edit Recipe Cost info Email Recipe Cost Send To Message (if any) or Close