french onion soup

Ingredients For french onion soup

• 1 stick

  butter
• 2 Tbsp

  olive oil
• 3 c

  sliced onion
• 4 10oz can

  beef broth
• 1 tsp

  dried thyme
• salt and pepper to taste
• 1 lg

  french bread loaf sliced
• 6 slice

  provolone cheese
• 3/4 c

  shredded swiss cheese
• 1/4 c

  grated parmesan cheese
• 4-6 individual oven safe bowls