Food in the Works of John Allison could be a subject for a monograph.
I made Zabaglione after it was mentioned in Solver. Then I reread some of Giant Days and it’s mentioned there too! But I realized that the zabaglione I made was not the same type as the type in the comics. In the comics it’s referring to an espresso drink of some sort, but the recipe I made was for a pudding. Further research is needed.
Also: I haven’t had Brunost in a long time but I don’t like it. I think I probably tried it once when I was five and I don’t know if I’ve ever given it a second chance.
But I think I can guess what the result will be if I ever decide to try it again.