We're having a get together for about 20 friends on new years eve and will be having a hot buffet. Food will be Spanish style so Tortilla, Paella plus nibbles like stuffed olives etc. But am stumped with dessert. Would prefer to have something big that people can help themselves to rather than individual things. Oh and we'll be away from home so limited access to cooking equipment like mixers, electric whisks and the like so needs to be easy to prepare! Any ideas?