French cabbage soup

I saw this recipe, a glorious pot of cheesy soup with cabbage, but I never really read it and I lost it. But I remember that it was a recipe from a French author or bistro (I don’t remember which), and it was French. So, I have made it a few times and it has always been a great joy to eat after 2 hours of everything slowly sautéing in the oven. It is one of those foods that needs nothing else, just company and good wine.