Mushroom & Caramelized Onion Soup with Cheesy Toasties and Beef

👩‍🍳 Instructions

1. Caramelize the Onions

  • Heat 2 tbsp olive oil in a large pot over medium-low heat.
  • Add onions and a pinch of salt. Cook slowly for 25–30 minutes until golden and soft.
  • Stir in garlic and cook 1 more minute.

2. Cook the Mushrooms

  • Push onions to the side, add remaining oil.
  • Add mushrooms and thyme; cook 6–8 minutes until browned.
  • Deglaze with balsamic vinegar and wine, scraping up browned bits.

3. Add Beef and Broth

  • Stir in cooked beef, broth, and soy/Worcestershire sauce.
  • Simmer uncovered for 15–20 minutes.
  • Optional: Add cream for a velvety finish.
  • Season to taste.

4. Make the Cheesy Toasties

  • Butter one side of each bread slice. Add mustard or garlic powder if desired.
  • Place cheese between two slices (buttered sides out).
  • Grill in a skillet over medium heat until golden and melty (3–4 minutes per side).

5. Serve

  • Ladle soup into bowls.
  • Slice toasties into strips or halves and serve on the side—or float them right on top!

Leave a Comment