I love to bake and have been baking a lot lately, particularly various fancy cakes for occasions like moving-out-of-the country parties etc. I am actually baking one such cake right now. The thing is that I end up making of lot of meringue/angel food cake type cake layers that can use up to 12 egg whites each and have a bunch of left over yolks that I do not know what to do with!

Any ideas for simple recipes? Can they be stored over longer time period/frozen etc. ? I feel bad throwing them away each time