INGREDIENTS
3
Bay leaves
3
lbs Sweet onions
5
Thyme, fresh sprigs
6 cups
Beef stock
1 tbsp
Worcestershire sauce
2 tsp
Brown sugar
1
Kosher salt and freshly ground black pepper
2 tsp
Sherry vinegar
1
french baguette
4 tbsp
Butter, unsalted
2 cups
Gruyere cheese