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Creamy French Onion and Mushroom Soup

Creamy French Onion and Mushroom Soup
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Creamy French Onion and Mushroom Soup is a rich and comforting blend of caramelized yellow onions and sautéed cremini mushrooms, combined in a luscious creamy base infused with herbs and savory broth. This soup offers deep umami flavors and a silky texture, perfect as a cozy starter or a hearty snack that can be customized for various dietary preferences.

Ingredients

Scale

Vegetables and Aromatics

  • 4 large yellow onions, thinly sliced
  • 8 oz cremini or button mushrooms, chopped
  • 3 garlic cloves, minced

Fats and Thickeners

  • 2 tbsp butter
  • 1 tbsp olive oil
  • 2 tbsp all-purpose flour (or gluten-free flour alternative)

Liquids and Cream

  • 4 cups vegetable or beef broth
  • 1 cup heavy cream or half-and-half (or coconut/cashew cream for vegan)

Herbs and Seasonings

  • 1 tsp fresh thyme or rosemary (optional)
  • Salt, to taste
  • Freshly ground black pepper, to taste

Optional Garnishes

  • 1/2 cup shredded Gruyere or Swiss cheese
  • Fresh chopped parsley or chives
  • Crisp croutons
  • Grated Parmesan

Instructions

  1. Caramelize the Onions: Heat butter and olive oil in a large pot over medium heat. Add thinly sliced yellow onions and a pinch of salt. Stir frequently as the onions soften and turn a sweet golden brown, a process that takes approximately 30 to 40 minutes. Patience is essential to develop the rich, signature flavor without bitterness.
  2. Sauté the Mushrooms and Garlic: When the onions are nearly caramelized, add the chopped mushrooms and minced garlic to the pot. Cook until the mushrooms release their moisture and then become tender and browned, adding an earthy texture that complements the sweetness of the onions.
  3. Build the Soup Base: Sprinkle flour over the onion and mushroom mixture, stirring continuously to cook out the raw flavor. Gradually whisk in the vegetable or beef broth, creating a smooth, thickened liquid. Bring the mixture to a gentle simmer to allow the flavors to meld fully.
  4. Stir in Cream and Seasonings: Add the heavy cream or half-and-half, and fresh thyme or rosemary if using. Taste the soup and adjust with salt and freshly ground black pepper to achieve a balanced richness without heaviness.
  5. Optional Cheese Finish: If desired, garnish the soup with shredded Gruyere or Swiss cheese. For a classic touch, transfer the soup into oven-safe bowls, top with cheese, and broil until bubbly and golden brown for a delicious crust.

Notes

  • Take your time caramelizing onions for maximum flavor; rushing may cause bitterness.
  • Always use fresh mushrooms for the best texture and taste; avoid canned.
  • Simmer the soup slowly and gently to allow complex flavors to combine perfectly.
  • Control the creaminess by starting with less cream and adjusting to preferred texture.
  • Add fresh herbs near the end of cooking to preserve their vibrant aroma.

Nutrition

Keywords: French onion soup, creamy mushroom soup, caramelized onions, comfort food, gourmet starter, vegetarian soup, gluten-free soup, creamy soup recipe

Find it online: https://marybaking.com/creamy-french-onion-and-mushroom-soup/