4 french beef gratin Recipes

butter, chopped mixed wild mushroom (cremini, shiitake, and oyster), sliced onion, fresh thyme, chopped (optional), all-purpose flour, cream, beef stock, reduced sodium, thick slices baguette, gruyere cheese, blue cheese, crumbled, chives, finely chopped

butter, onions, sliced thinly, sugar, beef broth, balsamic vinegar or 1 tbsp red wine vinegar, salt and pepper, toasted french bread, grated swiss cheese

onions, sliced thin, unsalted butter, dry white wine, brown stock or 4 cups canned beef broth, dried fine herb, french bread, toasted, camembert cheese (softened )