INGREDIENTS
1
Bay leaf
1 tbsp
Thyme, fresh
4
Yellow onions (about 1 3/4 pounds)
2 cups
Beef stock
2 cups
Chicken stock
1 tsp
Lemon juice
1 tsp
Flour
1
Kosher salt and freshly ground black pepper
4
(1-inch thick) baguette, thick slices
2 tbsp
Butter
1 tbsp
Parmesan, grated
1/2 cup
Swiss, grated
1/2 cup
Red wine, dry