Does anyone know the serving size amount for this pan? I went on Wilton's site and looked at the instructions but there isn't any servings listed. I have to do this for a baby shower serving 30.....I'm thinking I have to add a small cake under it for that much. Anyone have the information on servings? Thanks!

http://www.wilton.com/store/site/product.cfm?id=3E3107B0-475A-BAC0-5F59D22F3E911FFB&fid=3E32C85B-475A-BAC0-54A2CF7F8713F5BD

I believe it serves about 15 give or take!!