French Onion Marsala Soup

7 steps · 45 min total

1. 01

   Melt Butter and Oil

   In a large pot, melt the 1/4 cup butter with 2 tablespoons olive oil over medium heat.
2. 02

   Cook the Onions

   Add the 4 cups of sliced onions to the pot and stir continually until they are soft and translucent.
3. 03

   Simmer the Soup

   Pour in the 42 oz beef broth, 1/2 cup Marsala wine, and 1 teaspoon thyme. Bring the mixture to a simmer, then reduce the heat and let it gently cook for 30 minutes.
4. 04

   Season the Soup

   Stir in the 2 tablespoons of sugar. Season with salt and pepper, tasting as you go to avoid over-salting.
5. 05

   Prepare Bowls

   Ladle the hot soup into 4 oven-safe bowls. Place a handful of Texas toast croutons into each.
6. 06

   Top with Cheese

   Sprinkle 1/4 cup Parmesan cheese and the 2 slices of Swiss cheese over the croutons in each bowl. Layer 2 slices of provolone cheese on top of each.
7. 07

   Broil Until Golden

   Carefully place the bowls on a cookie sheet and broil in a preheated oven until the cheese is bubbly and browned, with some crispy edges.