Aquafaba and vegan butter. My son is allergic to peanuts and eggs. I make Swiss Meringue Buttercream from Aquafaba and butter, but you could easily sub vegan butter, cocoa butter, etc. There are several recipes on Google and youtube. My favorite is from a website called Geekycakes and cakedecor. There is also a vegan one from a bakery where the man uses cocoa butter and palm shortening. I found his recipe and an website for kids with allergies.

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