This Crockpot creamy mushroom soup is rich, savory, and simple to prepare. Fresh mushrooms, onion, garlic, thyme, broth, and cream slowly cook into comforting homemade soup.
About This Crockpot Mushroom Soup
Slow-cooked mushroom flavor
Slow cooking allows mushrooms, onions, garlic, and thyme to blend into a savory broth.
Creamy but not heavy
Half-and-half creates a smooth finish without making the soup excessively rich.
Choosing mushrooms
Button, cremini, or mixed fresh mushrooms all work well.
Homemade comfort food
Serve it as lunch, a starter, or a light dinner with crusty bread.
Crockpot Creamy Mushroom Soup Ingredients
Mushrooms and aromatics
Use evenly sliced mushrooms, diced onion, and minced garlic.
Broth and cream
Vegetable broth makes the recipe vegetarian; chicken broth creates a richer flavor.
Flour and butter
A small amount of flour thickens the soup. Use gluten-free flour if needed.
Seasonings
Thyme, salt, pepper, nutmeg, and parsley complement earthy mushrooms.
How to Make Creamy Mushroom Soup
Sauté the mushrooms and onion
Cook mushrooms and onion in butter until softened.
Add ingredients to the slow cooker
Transfer the mixture to the Crockpot with broth, garlic, flour, and seasonings.
Cook until tender
Cover and cook on LOW for 4–6 hours.
Finish with cream
Stir in half-and-half during the final 20–30 minutes.
Tips, Variations, and Storage
Make it vegetarian
Use vegetable broth.
Make it gluten-free
Use a gluten-free flour blend or cornstarch slurry.
Blend part of the soup
Blend 1–2 cups for a thicker texture while keeping mushroom pieces.
Store leftovers safely
Refrigerate promptly and use within 3–4 days.
Can I freeze it? Freeze before adding cream for the best texture.

Crockpot Creamy Mushroom Soup
Ingredients
- 2 pounds fresh mushrooms sliced.
- 1 medium yellow onion diced.
- 3 garlic cloves minced.
- 4 tablespoons unsalted butter.
- ¼ cup all-purpose flour.
- 4 cups vegetable or chicken broth.
- 1 teaspoon dried thyme.
- ½ teaspoon salt.
- ½ teaspoon black pepper.
- ½ teaspoon ground nutmeg optional.
- 1 cup half-and-half or light cream.
- 2 tablespoons chopped parsley.
Instructions
- Melt butter and cook onion and mushrooms for 5–7 minutes.
- Add garlic and cook for 30 seconds.
- Transfer to a slow cooker with flour, broth, thyme, salt, pepper, and nutmeg.
- Cook on LOW for 4–6 hours.
- Stir in cream during the final 20–30 minutes.
- Garnish with parsley.



