Italian Onion Soup | Progresso

Ingredients

• 2 tablespoons extra-virgin olive oil
• 1 tablespoon finely chopped garlic
• 8 cups thinly sliced onions (about 4 medium)
• 1/4 teaspoon gray salt or sea salt
• 1 tablespoon finely chopped fresh or 1 teaspoon dried sage leaves
• 1/4 cup Progresso™ balsamic vinegar
• 1 carton (32 oz) Progresso™ beef flavored broth
• 4 slices (3/4 inch thick) Italian country bread
• 1 cup shredded mozzarella cheese (4 oz)