Cozy Savory French Onion Soup Recipe for Cold Days - Beard and Bonnet

Ingredients

• 4 cups onions (sliced)
• 5 cups beef broth
• 2 tbsps olive oil
• ½ cup unsalted butter
• 2 slices Swiss cheese (diced)
• 4 slices provolone cheese
• ¼ cup Parmesan cheese (grated)
• 2 tbsps dry sherry
• 1 tsp dried thyme
• 1 pinch salt
• 1 pinch pepper
• 4 slices French bread