INGREDIENTS
1 tsp
Garlic powder
1/2 tsp
Parsley flakes
1 pinch
Thyme, dried
1 lb
Yellow onions
1 tsp
Balsamic vinegar
1/2 cup
Mayonnaise, regular or light
3 tsp
Worcestershire sauce
1/4 tsp
Salt
3 tbsp
Olive oil
8
slices Bakery fresh sourdough bread
1 tbsp
Butter
8
slices Deli sliced swiss or provolone cheese