Crockpot Mushroom and Potato Soup: The Ultimate Slow-Cooked Comfort

Posted on January 20, 2026

Difficulty

Prep time

Cooking time

Total time

Servings

​There is nothing quite like coming home to the savory, earthy aroma of Crockpot Mushroom and Potato Soup. This recipe is the epitome of “set-it-and-forget-it” comfort food. By allowing mushrooms and potatoes to simmer slowly over several hours, their flavors meld into a deep, umami-rich broth that is far more complex than a quick stovetop version. The potatoes naturally break down to thicken the soup, while the mushrooms provide a “meaty” texture that satisfies vegetarians and meat-eaters alike. It’s a hearty, nourishing bowl that requires minimal effort and delivers maximum flavor.

​Why This Recipe Works

  • Slow-Developed Umami: Mushrooms are high in glutamate, and slow cooking coaxes out their savory “fifth taste,” creating a broth that is incredibly satisfying.
  • Natural Thickening: Yukon Gold potatoes are used for their high starch content. As they slow-cook, they soften and partially dissolve, creating a naturally thick and creamy consistency without needing a heavy flour roux.
  • Herb Infusion: Hardier herbs like thyme and rosemary thrive in the slow cooker, infusing every drop of broth with a rustic, forest-like fragrance.
  • Effortless Meal Prep: With just 15 minutes of prep in the morning, you have a hot, homemade meal waiting for you at the end of the day.

​Recipe Details

  • Prep Time: 15 Minutes
  • Cook Time: 4 Hours (High) or 7–8 Hours (Low)
  • Total Time: ~8 Hours
  • Yield: 6 Servings
  • Difficulty: Very Easy

​Ingredients

  • ​1.5 lbs Mushrooms (Cremini or Baby Bella), sliced
  • ​3 Large Yukon Gold Potatoes, peeled and diced into 1-inch cubes
  • ​1 Large Yellow Onion, diced
  • ​3 cloves Garlic, minced
  • ​4 cups Vegetable or Mushroom Broth
  • ​1 tsp Dried Thyme
  • ​1/2 tsp Dried Rosemary, crushed
  • ​1/2 cup Heavy Cream or Full-Fat Coconut Milk (for a vegan version)
  • ​2 Tbsp Soy Sauce (the secret for extra umami)
  • ​2 Tbsp Butter or Olive Oil
  • ​Salt and Black Pepper to taste
  • Optional: Fresh parsley and a drizzle of truffle oil for serving.

​Instructions

  1. Quick Sauté (Optional but Recommended): For the deepest flavor, sauté the mushrooms and onions in a skillet with butter for 5–8 minutes before adding to the Crockpot. If you’re in a rush, you can skip this and put them in raw.
  2. Layer the Crockpot: Place the diced potatoes, mushrooms, onion, and garlic into the slow cooker.
  3. Season and Pour: Sprinkle the thyme, rosemary, salt, and pepper over the vegetables. Add the soy sauce and pour in the broth.
  4. Slow Cook: Cover and cook on Low for 7–8 hours or High for 4 hours, until the potatoes are very tender and the mushrooms have deepened in color.
  5. The Creamy Finish: About 20 minutes before serving, stir in the heavy cream (or coconut milk).
  6. Optional Blend: For an even creamier texture, take a potato masher and partially mash some of the potatoes directly in the pot, or use an immersion blender for a few quick pulses (leave some mushroom chunks for texture!).
  7. Serve: Taste and adjust seasoning. Ladle into bowls and garnish with fresh parsley.

​Conclusion

​This Crockpot Mushroom and Potato Soup is a masterclass in slow-cooked simplicity. It’s a rustic, farmhouse-style meal that highlights the natural synergy between earthy mushrooms and buttery potatoes. Because it’s made in the slow cooker, it’s an ideal recipe for busy weekdays or lazy Sundays alike. The result is a velvety, rich soup that feels like a warm hug in a bowl—perfect for chilly evenings and cozy nights in.

​(FAQ)

Q: Can I use different types of mushrooms?

A: Yes! While Cremini offer great flavor, a mix of Shiitake, Oyster, and Button mushrooms will provide even more textural interest and depth.

Q: Is this soup gluten-free?

A: Yes, it is naturally gluten-free! Just ensure your broth and soy sauce (or use Tamari) are certified gluten-free.

Q: How do I store leftovers?

A: This soup keeps beautifully in an airtight container in the fridge for up to 4 days. Reheat gently on the stove, adding a splash of broth if it has thickened too much in the fridge.

Tags:

You might also like these recipes

Leave a Comment