Mushroom & Caramelized Onion Soup with Cheesy Toasties
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Mushroom & Caramelized Onion Soup with Cheesy Toasties is a rich, savory classic made with golden onions, earthy mushrooms, and bubbling cheese on baguette rounds. Perfect for cozy dinners.
- Prep time
- 20 minutes
- Cook time
- 60 minutes
- Total time
- 80 minutes
- Yield
- 6 servings
Ingredients
4 tbsp unsalted butter 4 large yellow onions, thinly sliced 2 cloves garlic, finely chopped 2 bay leaves 2 sprigs fresh thyme 1 cup dry white wine ¼ cup all-purpose flour 8 cups beef broth (or vegetable broth) Salt & pepper 1 tbsp unsalted butter 1 tbsp olive oil 1 clove garlic, finely chopped 24 oz cremini mushrooms, quartered 1 tsp fresh thyme 1 baguette, sliced 8 oz Gruyère cheese, grated ½ cup Parmesan cheese, gratedInstructions
- Step 1: Melt butter in a large pot. Add onions, bay leaves, thyme, and salt. Cook 30–40 minutes until caramelized.
- Step 2: Stir in garlic, then deglaze with white wine. Simmer until reduced.
- Step 3: Add flour, cook 2 minutes, whisk in broth. Simmer 20–25 minutes.
- Step 4: In skillet, sauté garlic in butter and oil. Add mushrooms and thyme. Cook 10–12 minutes until browned.
- Step 5: Toast baguette slices, top with Gruyère and Parmesan, broil until bubbly.
- Step 6: Ladle soup, top with toasties, garnish with thyme and Parmesan.
Notes
For vegetarian soup, use mushroom broth. Gruyère can be replaced with Swiss or fontina. Toast baguette ahead for extra crunch. Soup freezes up to 3 months. Broil toasties fresh for best texture.Nutrition
- Calories
- 350
- Fat
- 18g
- Saturated fat
- 10g
- Sugar
- 7g
- Sodium
- 720mg
- Protein
- 14g
- Carbohydrates
- 34g
- Fiber
- 4g