I am making my first /12 sheet cake for a customer and they want fresh strawberry filling. I am not a fan of fillings but I want my filling to be unique. All of the recipes I find require of course Strawberries sugar and corn starch and some require lemon juice. I have a strawberry filling I use for my Strawberry Shortcake trifle but it also includes Strawberry Gelatin. Can I use this? I think it tastes great but not sure if the gelatin is a no no. Any tips for making it not so ordinary would be great too.