Creamy Mushroom Stroganoff Soup (Printable)

A luscious vegetarian soup blending classic stroganoff flavors with mushroom umami and miso richness.

# What You'll Need:

→ Mushrooms

01 - 1 pound mixed mushrooms (cremini, shiitake, button), sliced

→ Vegetables

02 - 1 medium onion, finely chopped
03 - 2 cloves garlic, minced
04 - 1 medium carrot, diced
05 - 2 celery stalks, diced

→ Soup Base

06 - 1 tablespoon olive oil
07 - 1 tablespoon unsalted butter
08 - 4 cups vegetable broth
09 - 2 tablespoons dry white wine, optional
10 - 2 teaspoons soy sauce
11 - 1 tablespoon white miso paste
12 - 1 teaspoon smoked paprika
13 - 1/2 teaspoon dried thyme
14 - Salt and freshly ground black pepper to taste

→ Creamy Element

15 - 3/4 cup sour cream or full-fat crème fraîche
16 - 1 tablespoon all-purpose flour

→ Garnish

17 - 2 tablespoons fresh parsley, chopped
18 - Extra sour cream for serving, optional

# Step-by-Step Guide:

01 - Heat olive oil and butter in a large pot over medium heat. Add onions, carrots, and celery; sauté for 5 minutes until softened.
02 - Stir in garlic and cook for 30 seconds. Add mushrooms and cook for 7 to 8 minutes, stirring occasionally, until mushrooms are golden and have released their moisture.
03 - Sprinkle flour over the vegetables and stir to coat evenly. Cook for 1 minute to remove raw flour taste.
04 - Deglaze with white wine if using, scraping up any browned bits from the bottom of the pot.
05 - Add vegetable broth, soy sauce, smoked paprika, thyme, salt, and pepper. Bring to a gentle simmer, cover, and cook for 15 minutes.
06 - In a small bowl, whisk miso paste with 2 tablespoons of hot broth until smooth. Stir this mixture back into the soup.
07 - Reduce heat to low. Stir in sour cream until fully combined and the soup is creamy. Do not boil after adding sour cream to prevent curdling.
08 - Taste and adjust seasoning if needed.
09 - Ladle into bowls, garnish with fresh parsley and an extra dollop of sour cream if desired. Serve hot.

# Expert Tips:

01 -
  • It's vegetarian but so deeply savory and umami-rich that nobody will miss the meat.
  • The whole thing comes together in under an hour, making it perfect for weeknights when you want something that feels indulgent.
  • Miso and mushrooms create a flavor complexity that makes people ask for the recipe before they finish their first spoonful.
02 -
  • Don't skip the step of whisking miso paste with hot broth separately—dumping it straight into the pot creates bitter, burnt pockets that can ruin the whole thing.
  • Never boil the soup after adding sour cream; keep it on low heat and stir gently, which was a hard-learned lesson after I once turned a beautiful soup into something that looked broken and separated.
03 -
  • Brown your mushrooms in batches if your pot is crowded—they need space to caramelize rather than steam, and crowding them keeps them pale and releases water instead of developing flavor.
  • Make this soup a day ahead and let it sit in the fridge overnight; the flavors deepen and meld together, and reheating it gently on the stove brings it back to silky perfection.
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