INGREDIENTS
8 cups
Thinly vertically sliced sweet onion
1/4 tsp
Thyme, fresh
8 cups
Less-sodium beef broth
1/2 tsp
Black pepper, freshly ground
1/4 tsp
Salt
1/2 tsp
Sugar
2 tbsp
Olive oil
6
slices French bread
1 1/2 cups
Gruyere cheese
1/3 cup
White wine, dry