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+ servings

Mushroom Soup

Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Appetizer, Breakfast, Side Dish, Soup
Cuisine American
Keyword Mushroom Soup
Servings 4
Make a rich mushroom soup with rosemary, perfect for winter meals! Keto, GF, and vegan adaptable.

Ingredients

  • 4 tablespoons olive oil butter, or vegan butter
  • 1 large onion diced (or 2 shallots)
  • 4 garlic cloves roughly chopped (plus 2–4 extra for garnish)
  • 1 lb cremini mushrooms sliced (or your mushroom of choice)
  • ½ teaspoon salt
  • 1 tablespoon fresh rosemary chopped (or thyme)
  • ¼ cup sherry cooking wine or marsala/red wine
  • 5 tablespoons flour all-purpose or gluten-free
  • 3 cups hot vegetable broth chicken stock, or beef broth
  • ½ to 1 cup sour cream vegan, cashew cream, or heavy cream
  • Pepper to taste

Optional Garnish:

  • Truffle oil drizzle
  • Garlic chips
  • Croutons
  • Crusty bread

Instructions

Step 1: Sauté the Aromatics

  • In a large pot or Dutch oven, heat your oil or butter over medium-high heat. Add the diced onion and sauté for 3–4 minutes until golden and fragrant. Lower the heat to medium, add garlic, and continue to cook for 2 more minutes.

Step 2: Cook the Mushrooms

  • Add the sliced mushrooms, salt, and rosemary to the pot. Sauté for 10–12 minutes, stirring occasionally. Allow the mushrooms to release their moisture and develop a deep, savory flavor. Pour in the cooking wine, turn up the heat, and let the alcohol cook off — about 3–4 minutes.
  • Optional: Set aside ¼ cup of mushrooms for garnish.

Step 3: Create the Roux

  • Lower the heat to medium again. Sprinkle flour over the mushrooms and stir constantly for 1–2 minutes. This will help thicken the soup. Add 1 cup of hot broth and stir vigorously to deglaze the pot and mix in all the browned bits. Add the remaining 2 cups of broth gradually, stirring well.

Step 4: Add Creaminess

  • Once the soup reaches a gentle simmer, stir in the sour cream or your preferred alternative. Mix thoroughly until smooth. Season with pepper and taste for salt, adjusting if needed.
  • Tip: If the soup is too thick for your liking, add a bit more broth to reach your desired consistency.