@Maribel--and-Agustin0 Yes, that is certainly allowed by Airbnb and appreciated by guests! As long as it doesn't run afoul of some obscure local law concerning food service, it should be a fine way to welcome guests and share your talents.
I've been baking a loaf of sourdough bread for every guest and they have been loving it. It costs me very little for a big return and gives me a point of difference. I say go for it!