There’s something deeply comforting about a bowl of homemade cream of mushroom soup—silky, earthy, and fragrant, with golden, crunchy croutons bobbing on top. I first perfected this recipe on a drizzly October afternoon when the farmers’ market was overflowing with fragrant cremini, shiitake, and oyster mushrooms. I brought home more mushrooms than I could reasonably sauté, so I simmered, blended, and swirled in a touch of cream until the whole kitchen smelled like a French bistro. One spoonful and my husband declared it “the stuff of plaid blankets, crackling fireplaces, and slow Sundays.” Since then, it’s become our go-to for Thanksgiving eve dinners, snowy nights, and anytime we crave restaurant-quality comfort without leaving home.

Why This Recipe Works

Triple-mushroom blend: cremini, shiitake, and a handful of dried porcini create layers of umami.
Quick oven-roasted garlic adds caramelized sweetness without extra pans.
Blending half the soup delivers silky body while leaving tender mushroom bits for texture.
Herb-infused croutons bake while the soup simmers—no separate skillet needed.
Make-ahead friendly: flavor actually improves overnight, so it’s perfect for entertaining.
Flexibly vegetarian (use veggie stock) or omnivore (chicken stock deepens richness).

Ingredients You'll Need

The soul of this soup lies in the mushrooms. Seek out fresh, firm specimens with unbroken caps and a sweet, foresty aroma. If you can only find cremini, the soup will still be delicious, but a medley is worth the hunt. Dried porcini or chanterelle boost earthiness; rehydrate them in hot stock and add both soaking liquid and mushrooms to the pot. For the cream element, I use equal parts whole milk and heavy cream for silkiness without heaviness, but half-and-half works in a pinch. The croutons require day-old bread—something with a sturdy crumb like sourdough or ciabatta—so it can stand up to olive oil, garlic, and a shower of herbs. Finally, a splash of dry sherry lifts all the flavors, but dry white wine or even apple cider will do if you prefer to keep the bottle capped.

How to Make Warm Cream of Mushroom Soup with Croutons

Roast the garlic & prep mushrooms

Heat oven to 400 °F (204 °C). Trim the top off a whole head of garlic, drizzle with olive oil, wrap in foil, and place on the middle rack. Meanwhile, wipe mushrooms clean with a damp paper towel (never soak them). Trim woody stems from shiitakes and slice all mushrooms ¼-inch thick. Keep varieties separate for even cooking.

Build the base

In a heavy Dutch oven, melt 3 Tbsp unsalted butter over medium heat until foaming subsides. Add diced onion and cook 4–5 min until translucent. Stir in sliced leek (white & light-green only) and cook another 3 min. Add a pinch of salt to draw moisture and prevent browning.

Sauté mushrooms in stages

Increase heat to medium-high. Scatter in cremini; leave undisturbed 90 seconds for caramelization. Stir, cook 2 min more, then transfer to a bowl. Repeat with shiitake and oyster mushrooms, adding 1 tsp olive oil each batch. Cooking in layers prevents watery steaming and intensifies flavor.

Deglaze & bloom spices

Return all mushrooms to pot. Add 3 Tbsp dry sherry; scrape browned bits. Sprinkle ¼ cup flour over mixture; stir constantly 2 min to cook out raw taste. Add ½ tsp each dried thyme and rubbed sage, plus ¼ tsp freshly grated nutmeg. The flour will help thicken the finished soup.

Simmer with stock & aromatics

Pour in 4 cups low-sodium chicken or vegetable stock and ½ cup reserved porcini soaking liquid (if using). Squeeze roasted garlic cloves into soup; they’ll melt like velvet. Add 2 bay leaves and bring to a gentle boil. Reduce to low, cover partially, and simmer 15 min to marry flavors.

Blend for silkiness

Fish out bay leaves. Using an immersion blender, pulse 5–6 times until roughly half the soup is puréed. Alternatively, ladle half into a countertop blender, blend until smooth, and return to pot. This step creates a creamy texture without heavy cream alone.

Finish with cream & season

Stir in ½ cup heavy cream and ½ cup whole milk. Warm gently—do not boil or cream may curdle. Season with 1 tsp kosher salt and ½ tsp freshly cracked black pepper. Add a squeeze of lemon juice to brighten; taste and adjust salt, pepper, or herbs.

Bake the herbed croutons

While soup simmers, cube 3 cups day-old bread. Toss with 2 Tbsp olive oil, 1 tsp garlic powder, ½ tsp dried rosemary, ½ tsp dried thyme, pinch salt & pepper. Spread on sheet pan; bake at 400 °F for 10–12 min, stirring once, until golden and crisp. Cool completely for maximum crunch.

Serve & garnish

Ladle hot soup into warm bowls. Top generously with croutons, a drizzle of herb oil, and a twist of black pepper. Offer extra cream or sherry at the table for guests to customize. Pair with crusty sourdough and a crisp green salad for a complete meal.

Expert Tips

Low & Slow Cream Addition

Warm cream to lukewarm before stirring into soup; cold dairy can cause curdling in hot liquid.

Mushroom-Cleaning Rule

Use a barely damp towel. Mushrooms are sponges; excess water will steam rather than brown.

Make-Ahead Magic

Soup thickens as it sits; thin with stock or milk when reheating, and add fresh cream for shine.

Umami Boost

A teaspoon of white miso or anchovy paste melted into the sauté deepens savoriness without overt taste.

Blender Safety

When using countertop blender, vent lid and cover with towel to prevent steam blowouts.

Crouton Crunch

Store croutons in an airtight tin; they stay crisp a week and double as salad toppers.

Variations to Try

Truffle Luxe: Swap sherry for 2 tsp white truffle oil and finish with shaved black truffle for date-night elegance.
Vegan Velvet: Use olive oil, veggie stock, and replace dairy with full-fat coconut milk; add squeeze lime for balance.
Wild Rice & Mushroom: Stir in 1 cup cooked wild rice after blending for a hearty, chunky texture.
Smoky Bacon: Render 4 oz diced pancetta first; use rendered fat to sauté vegetables for campfire smokiness.
Spicy Kick: Add ½ tsp smoked paprika and a pinch cayenne; top with chipotle croutons for warmth.

Storage Tips

Refrigerator: Cool soup completely, transfer to airtight container, and refrigerate up to 4 days. Reheat gently over medium-low, thinning with stock or milk as needed. Croutons should be stored separately at room temp to maintain crunch.

Freezer: This soup freezes beautifully, though dairy may separate slightly. Freeze in portion-sized souper-cubes or heavy-duty bags (lay flat to save space) for up to 3 months. Thaw overnight in fridge, then reheat slowly and whisk in a splash of warm cream to re-emulsify.

Make-Ahead: Soup tastes even better the next day as flavors meld. Roast garlic, slice mushrooms, and cube bread the night before; store each separately. On serving day, sauté, simmer, blend, and finish with cream in under 30 minutes.

Frequently Asked Questions

Heavy cream (35 % fat) withstands heat without curdling. All-purpose cream (around 20 % fat) can split; stabilize by whisking 1 tsp cornstarch into it before adding, and never let the soup boil once creamed.

Dry white wine, vermouth, or even apple cider work. For non-alcoholic, use 2 Tbsp rice vinegar plus 1 tsp honey to mimic sherry’s sweet acidity.

Cook in a single layer over medium-high heat with enough fat; overcrowding steams them. Add salt only after they’ve browned; salting too early draws out moisture.

As written it contains flour. Swap flour for 2 Tbsp cornstarch or use certified GF flour blend. Serve with GF bread croutons.

Dairy and flour make safe canning tricky. Instead, can the mushroom-stock base (without cream or thickener), then add cream when reheating.

Mushrooms need adequate salt and acid. Add more salt in pinches, then brighten with a squeeze of lemon or dash of sherry vinegar until flavors pop.