Creamy Mushroom Soup: French Vegetable Starter
This French creamy mushroom soup relies on the caramelisation of onions and the browning of mushrooms to develop deep, earthy notes. You must sauté the mushrooms until their moisture evaporates to ensure the flavour concentrates. Blend two-thirds of the soup with an immersion blender to achieve a velvety texture while keeping some chunks for substance. Stir in the heavy cream at the end on medium-low heat to prevent boiling, which preserves the smooth consistency.
Creamy Mushroom Soup: French Vegetable Starter
Recipe cardIngredients
Watch how it's made
Instructions
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Sauté the aromatics
Heat a large stockpot over medium heat. Melt the butter and olive oil until the butter foams. Sauté the onion for 5 minutes until translucent and just beginning to caramelise, then stir in the garlic for 1 minute. Avoid browning the garlic to keep the flavour mild.
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Brown the mushrooms
Add the sliced mushrooms to the pot with half of the salt and pepper. Sauté for 8–10 minutes, stirring often. Wait until the mushrooms release their moisture and it evaporates completely so they brown properly.
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Simmer the base
Pour in the broth and add the fresh thyme leaves. Bring the liquid to a gentle simmer, then reduce the heat to low. Let the soup simmer uncovered for 18 minutes to concentrate the mushroom juices and meld the flavours.
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Balance the acidity
Stir in the optional grape juice now to provide a bright acidity. Taste the liquid. Adjust the seasoning with salt and pepper to ensure the earthy tones are balanced.
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Blend for texture
Use an immersion blender to blend about two-thirds of the soup directly in the pot. This creates a velvety base while leaving some whole mushroom pieces for contrast. Skip this step if you prefer a chunkier consistency.
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Finish with cream
Return the pot to medium-low heat and stir in the heavy cream. Warm the soup for 5 minutes. Do not let it boil, as high heat can cause the cream to separate.
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Season and serve
Stir in the remaining salt and pepper. Ladle the soup into bowls and garnish with chopped parsley and a drizzle of olive oil. Serve hot with crusty bread.
Watch the cream closely during the final heating stage. If the soup boils, the fats may separate and the texture will become grainy. Keep the heat on a gentle simmer to maintain a smooth, silky consistency throughout the dish.
What to serve with it
Serve this soup with garlic-oiled buttered focaccia to soak up the broth. A light salad on the side provides a fresh contrast to the earthy tones. For extra richness, add a dollop of crème fraîche or Greek yoghurt to the bowl before serving with crusty bread.
Storing and reheating
Leave the soup uncovered at room temperature for no longer than 2 hours before refrigerating. Store in the fridge for up to 4 days. For longer storage, transfer to an airtight container and freeze for 2 weeks. Thaw in the refrigerator overnight and reheat gently.
Getting the texture right
Slice mushrooms uniformly so they cook evenly and blend into a velvety texture. Use an immersion blender directly in the pot for two-thirds of the soup. If the liquid thickens too much during cooling, stir in a splash of reserved hot broth to reach your desired consistency.
Making it ahead
Prepare the soup in advance and store it in the refrigerator. When reheating, use medium-low heat to ensure the cream does not boil, which prevents the soup from separating. This allows the earthy flavours of the thyme and mushrooms to concentrate further before serving.
Nutrition per serving
- Calories
- 215
- Protein
- 6.2 g
- Carbs
- 11.4 g
- Fat
- 16.8 g
- Fiber
- 1.8 g
- Sugar
- 4.1 g
Estimated, and offered as a guide rather than a medical figure.
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Questions people ask
How to make creamy mushroom soup at home?
Sauté onions, garlic, and sliced mushrooms in butter and olive oil. Simmer these with broth and thyme for 18 minutes, then blend a portion of the soup and stir in heavy cream for a silky finish.
What makes mushroom soup creamy?
The combination of heavy cream and the process of blending two-thirds of the mushrooms creates the creamy consistency. The butter used for sautéing also adds a rich, smooth mouthfeel to the final dish.
What are the ingredients of cream of mushroom soup?
This recipe uses mixed button, cremini, or brown mushrooms, onion, garlic, butter, olive oil, chicken or vegetable broth, heavy cream, and fresh thyme, seasoned with sea salt, black pepper, and optional grape juice.
About the author
Mary C. Rivero
Mary C. Rivero specializes in comforting home‑cooked meals, from hearty pastas and sheet‑pan dinners to quick weeknight snacks. Her recipes feature clear, step‑by‑step directions and practical tips, helping readers create flavorful dishes with confidence and ease.
