French Onion Soup | Metro

Ingredients

• 1/4 cup (60 mL) unsalted buter
• 3 large onion, thinly sliced
• 2 dried bay leaves
• 1/2 tsp. (2 1/2 mL) fresh thyme, chopped
• 2 Tbsp. (30 mL) all purpose flour
• 1/2 cup (125 mL) red wine
• 1 Tbsp. (15 ml) balsamic vinegar
• 900 mL Campbell's ready to use beef broth
• 1/2 tsp. (2 1/2 mL) black pepper
• 12 slices baguette, 1/2" slices, toasted
• 1 cup (250 mL) gruyère cheese, shredded
• 3 Tbsp. (45 mL) Parmesan cheese, grated