I’m leaning toward apple sauce. It’s already something that’s eaten on its own. In terms of a savory sauce, if dressings count—I think they do—then greek dressing would be my answer. Dressings in general tend to be more drinkable than typical condiments. Anyways, what’s your opinion?
A loose custard for sweet. Maybe a tomato based pasta sauce for savoury. Kinda like a bloody Mary.