Mushroom & Caramelized Onion Soup with Cheesy Toasties and Beef

Here’s a soul-warming recipe for Mushroom & Caramelized Onion Soup with Cheesy Toasties and Beef—a gourmet twist on French onion soup meets mushroom bisque, perfect for chilly evenings 🍄🧅🥩🧀

🍲 Ingredients (Serves 4)

For the Soup:

  • 4 tbsp olive oil
  • 3 large yellow onions, thinly sliced
  • 4 cloves garlic, minced
  • 450g (1 lb) cremini or mixed mushrooms, sliced
  • 225g (½ lb) cooked beef (shredded roast, steak strips, or ground beef)
  • 1 tsp fresh thyme (or ½ tsp dried)
  • 1 tbsp balsamic vinegar
  • ½ cup dry white wine (or more broth)
  • 4 cups beef broth (or mushroom broth for vegetarian)
  • 1 tbsp soy sauce or Worcestershire sauce
  • Salt and black pepper to taste
  • Optional: ½ cup heavy cream for extra richness

For the Cheesy Toasties:

  • 8 slices rustic bread or sourdough
  • 1 cup grated Gruyère or Swiss cheese (or mix with mozzarella/cheddar)
  • 2 tbsp softened butter
  • Optional: garlic powder or Dijon mustard for spreading

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