INGREDIENTS
6
lbs Onions
1
Black pepper, freshly ground
1
Kosher salt
1 tbsp
White balsamic vinegar or white/red wine vinegar
6
slices Bread - i used peasant bread, country-style
1 tbsp
Butter
1 lb
Gruyere or comte cheese, grated
1 tbsp
Red wine
1/3 cup
Sherry