Serious Eats: Talk

what to do with leftover egg whites?

So, a friend has asked me to make a cake for her, and i'm using a french buttercream frosting, which only uses egg yolks. This means i'll be stuck with a lot of leftover egg whites, but I really don't much know what to do with them...Meringues came to mind, but that's about it. Any other ideas?

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