Crockpot Creamy Mushroom Soup Recipe

I can’t resist how this crockpot creamy mushroom soup turns simple ingredients into a rich, restaurant-worthy dinner. One spoonful and it feels like the easiest winter recipe you’ll want on repeat.

I’m obsessed with this Crockpot Creamy Mushroom Soup because it tastes rich, earthy, and seriously full-bodied without making me babysit dinner. I love how the mushrooms bring that deep, savory bite, while heavy cream turns every spoonful silky and almost dangerously easy to keep eating.

And yes, I absolutely go back for seconds. Maybe thirds.

This is the kind of soup I crave when I want something simple but not boring, creamy but not bland, and hearty enough to call dinner. But the best part?

My kitchen smells like I actually tried way harder than I did. No regrets ever.

Ingredients

• Olive oil helps the mushrooms brown better, so they taste deeper, not flat.
• Butter adds that cozy richness you want in creamy soup.
• Mushrooms bring the main earthy flavor, plus they make it feel hearty.
• Yellow onion adds sweetness in the background without stealing the show.
• Garlic gives it that warm, savory kick everyone notices.
• Flour thickens things up so the soup feels creamy, not watery.
• Broth builds the base, and low sodium keeps it from getting too salty.
• Heavy cream makes it smooth, rich, and honestly kind of comforting.
• Worcestershire sauce adds a little tangy depth.

  Basically, it wakes everything up.

• Thyme tastes woodsy and fresh, like it belongs with mushrooms.
• Bay leaf quietly adds flavor while the crockpot does its thing.
• Salt and pepper keep it balanced, because bland soup is just sad.
• Parsley adds a fresh pop at the end, plus it looks pretty.

Ingredient Quantities

• 2 tablespoons olive oil
• 2 tablespoons unsalted butter
• 1 1/2 pounds mushrooms, sliced (cremini, baby bella, or mixed)
• 1 medium yellow onion, diced
• 3 cloves garlic, minced
• 1/4 cup all purpose flour
• 4 cups low sodium chicken broth or vegetable broth
• 1 cup heavy cream
• 1 teaspoon Worcestershire sauce
• 1 teaspoon fresh thyme leaves or 1/2 teaspoon dried thyme
• 1 bay leaf
• 1 teaspoon kosher salt, plus more to taste
• 1/2 teaspoon freshly ground black pepper
• 2 tablespoons chopped fresh parsley for garnish (optional)

How to Make this

1. Heat olive oil and butter in a large skillet over medium heat; add sliced mushrooms and cook until they release moisture and begin to brown, about 8 minutes.

2. Add diced onion and minced garlic to the skillet and cook until the onion is translucent, about 4 minutes.

3. Sprinkle the flour over the mushroom mixture, stir well, and cook 1 to 2 minutes to remove the raw flour taste.

4. Gradually stir in 1 cup of the broth to deglaze the pan and form a smooth mixture, then transfer everything to the crockpot.

5. Pour in the remaining 3 cups of broth, add Worcestershire sauce, thyme, bay leaf, kosher salt, and black pepper; stir to combine.

6. Cover and cook on Low for 6 to 7 hours, or on High for 3 to 4 hours, until flavors are well melded.

7. Remove and discard the bay leaf. Use an immersion blender to partially or fully puree the soup to your desired texture, or transfer a portion to a blender and return to the crockpot.

8. Stir in the heavy cream and warm through for 10 minutes on Low, tasting and adjusting salt and pepper as needed.

9. If a thicker soup is desired, simmer on High with the lid slightly ajar for 10 to 15 minutes, stirring occasionally.

10. Ladle into bowls, garnish with chopped fresh parsley if using, and serve hot.

Equipment Needed

1. Large skillet or sauté pan
2. Slow cooker Crockpot
3. Immersion blender or countertop blender
4. Chef’s knife
5. Cutting board
6. Measuring cups and spoons
7. Wooden spoon or heatproof spatula
8. Ladle for serving

FAQ

Crockpot Creamy Mushroom Soup Recipe Substitutions and Variations

• Olive oil: use avocado oil, grapeseed oil, or light olive oil for a neutral flavor
• Unsalted butter: use ghee, equal salted butter (reduce added salt), or a plant based butter
• Heavy cream: use half and half for a lighter soup, whole milk plus 2 tablespoons melted butter per cup, or canned full fat coconut milk for dairy free
• Chicken broth: use vegetable broth, mushroom broth, or low sodium beef broth for a deeper savory note

Pro Tips

1. Get a deep, golden sear on the mushrooms before they go to the slow cooker. Work in batches if your skillet is crowded so they brown instead of steam; that caramelization is the backbone of the soup’s flavor.

2. Don’t skip the quick flour cook in the pan and the early deglaze with a cup of broth. That step both removes raw flour taste and scrapes up browned bits that add richness once everything simmers low and slow.

3. Blend selectively for best texture. Puree only half the soup for a velvety body with mushroom bits left for bite, or go fully smooth if you want a silky bisque. An immersion blender in the crockpot is easiest and safer.

4. Finish and season at the end. Add the cream slowly and taste for salt and acidity after it warms. A small splash of vinegar or a squeeze of lemon can brighten the flavors if the soup tastes flat after cooking.