INGREDIENTS
2
Bay leaves
5
Purple onions, about 3 pounds
2 cups
Beef stock
6 cups
Chicken stock
1/8 cup
Balsamic vinegar, high-quality
1
Sea salt and freshly ground pepper
1
Bread, Crusty
4 tbsp
Butter
3 tbsp
Swiss or parmesan cheese, grated
½ teaspoon of dried thyme or 1 teaspoon fresh