INGREDIENTS
1 tsp
Flat-leaf parsley
5
lbs Sweet onions
2 tsp
Thyme, leaves
1 1/2 cups
Chicken broth
1/4 cup
Worcestershire sauce
1
Salt and freshly ground pepper
1/4 cup
Sherry vinegar
1
Baguette
1/4 cup
Butter, unsalted
2 cups
Gruyere cheese
1/4 cup
Sherry, dry