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Bowl of Slow Cooker Creamy Potato and Leek Soup with fresh herbs and a swirl of cream.

Slow Cooker Creamy Potato and Leek Soup

A cozy, comforting soup made with simple ingredients, perfect for busy days when you want a warm and filling meal without the hassle.
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Prep Time 15 minutes
Cook Time 8 hours
Total Time 8 hours 15 minutes
Servings: 6 servings
Course: Main Course, Soup
Cuisine: American
Calories: 300
Ingredients Method Notes

Ingredients
  

Main Ingredients
  • 2 large Leeks Trimmed and rinsed well to remove grit.
  • 2 pounds Potatoes (Yukon Gold preferred) Cut into chunks, peeling optional.
  • 1 medium Onion (optional) For extra flavor.
  • 2-4 cloves Garlic Adjust based on preference.
  • 4 cups Broth (vegetable or chicken)
  • 1 teaspoon Salt Adjust to taste.
  • 1 teaspoon Black pepper Freshly ground is best.
  • 1 teaspoon Dried thyme Or fresh thyme for better flavor.
  • 1 leaf Bay leaf (optional)
  • 1 cup Heavy cream, half and half, or whole milk For creaminess.
  • 2 tablespoons Butter or olive oil For sauting (optional).

Method
 

Preparation
  1. Trim off the dark green tops and the root end of the leeks, slice the pale parts, and rinse them well to remove grit.
  2. Chop the potatoes into even chunks; peeling is optional.
  3. Add leeks, potatoes, garlic, broth, thyme, and a pinch of salt and pepper to the slow cooker. Add the bay leaf if using.
Cooking
  1. Cover and cook on low for 6 to 8 hours or on high for 3 to 4 hours, until potatoes are very tender.
Blending
  1. Remove the bay leaf and blend the soup until smooth using an immersion blender or a regular blender.
Finishing Touches
  1. Stir in butter and cream or half and half. Taste and adjust seasoning with salt and pepper as needed.
  2. Serve and top with cracked pepper and desired toppings.

Notes

Soup keeps in the fridge for about 4 days and freezes well if frozen before adding cream. For a lighter version, use whole milk or evaporated milk instead of heavy cream. Consider adding extras like chicken, bacon, or greens for variation.