Hi Phlexor,
Don't know if I ever posted a recipe for snert here for you.
Found a decent one in English. Here's the
link.
I make a meatless one, so I don't think you'd be that interested in my recipe. And I don't have a fixed recipe. Sometimes mood and ingredients ask for a change. It is not time for me yet to make it, too warm right now. So not reading recipes on boxes of green dried peas or split peas yet.
Give it a try and make your own adaptations till you get your own family recipe.
What she said about the soup going sour, I have never had that happen, can't remember my mother ever having that happen either. But, I've read it more than once that it can happen.