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Slow Cooker Potato Leek Soup Recipe

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4.2 from 82 reviews

A creamy and comforting slow cooker potato leek soup made with tender potatoes, mild leeks, and a smooth blend of onion, broth, butter, and cream. Perfect for a cozy meal with rich flavors developed through slow cooking.

  • Total Time: 6 hours 15 minutes
  • Yield: 6 servings

Ingredients

Vegetables

  • 3 large potatoes, peeled and diced
  • 2 leeks, cleaned and sliced
  • 1 small onion, diced

Liquids & Dairy

  • 3 cups vegetable or chicken broth
  • 1 cup heavy cream
  • 2 tablespoons butter

Seasonings

  • 1 teaspoon salt
  • 1/2 teaspoon black pepper

Instructions

  1. Prepare Ingredients: Peel and dice the potatoes, clean and slice the leeks thoroughly to remove grit, and dice the small onion.
  2. Add to Slow Cooker: Place the potatoes, leeks, onion, broth, butter, salt, and black pepper into the slow cooker.
  3. Slow Cook: Cover the slow cooker and cook on low for 6 to 7 hours or on high for 3 to 4 hours, until the vegetables are very tender.
  4. Blend Soup: Using an immersion blender, blend the soup directly in the slow cooker until smooth. Alternatively, carefully blend the soup in batches in a traditional blender.
  5. Add Cream: Stir in the heavy cream and continue to cook the soup in the slow cooker for an additional 10 to 15 minutes, allowing the flavors to meld.
  6. Adjust Seasoning and Serve: Taste and adjust the salt and pepper if needed. Serve the soup warm, optionally garnished with chopped chives or crispy bacon.

Notes

  • Garnish with chopped chives or crispy bacon for added flavor and texture.
  • Substitute heavy cream with half-and-half for a lighter soup.
  • The soup is vegetarian if vegetable broth is used; use chicken broth for a non-vegetarian version.
  • Author: Jessica
  • Prep Time: 15 minutes
  • Cook Time: 6 hours
  • Category: Soup
  • Method: Slow Cooking
  • Cuisine: French-Inspired
  • Diet: Vegetarian