I am making one of those pull apart cupcake wedding dresses for a friends shower, it needs to have 28 cupcakes in it...how big of a cake board should I get?
Try the Wilton anti-humidity BC recipe. It's the one I swear by and I live in heat every day. Reduce fat and increase sugar 1:4 ratio.
This person's tutorial has listed and shown every step you need to take; including quantity and board dimensions for the 27-cupcake wedding dress she did.