What homemade or "real food" ingredient can I substitute in recipes that call for Cream Of Whatever soup?
Inspired by the stroganoff recipe in this question
I often come across recipes that call for soup as an ingredient of the final recipe. Most often I find it in old family recipes, or recipes spread by word of mouth like the one linked above. Now I'm seeing it a lot in the posts sponsored by Campbell's Soup on Serious Eats
It seems logical to me that the called-for soup is a convenience to replace some group of other liquid ingredients. That, once upon a time, instead of adding a can of soup, you would add [X].
What is [X]?
Or, if I'm wrong and these recipes sprung up fully formed in the era of convenience foods, what can
I substitute in if I don't want to use canned soups? I typically prefer to cook from scratch. I'm pretty distrustful of recipes that call for a bunch of pre-processed food items when using the real thing would be almost as easy. I especially don't like buying processed foods I would not normally eat on their own to use as an ingredient in another dish.
Side question: should I just stop worrying and learn to love the cream of mushroom soup? Am I being a snob about this?