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Slow Cooker Creamy Potato Soup - Cozy, Comforting, and Easy

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Prep Time 15 minutes
Cook Time 7 hours
Total Time 7 hours 15 minutes
Servings: 6 servings
Ingredients Method

Ingredients
  

  • Russet potatoes (about 3 pounds), peeled and diced
  • Yellow onion (1 large), diced
  • Garlic (3–4 cloves), minced
  • Carrots (2 medium), peeled and diced (optional for sweetness and color)
  • Celery (2 ribs), diced (optional for depth)
  • Chicken or vegetable broth (4 cups)
  • Heavy cream (1 cup) or half-and-half for a lighter option
  • Cheddar cheese (1 to 1 1/2 cups), freshly shredded
  • Unsalted butter (2 tablespoons)
  • All-purpose flour (2 tablespoons) or cornstarch for gluten-free thickening
  • Smoked bacon (4–6 slices), cooked and crumbled (optional but recommended)
  • Bay leaf (1)
  • Dried thyme (1/2 teaspoon) or fresh thyme leaves (1 teaspoon)
  • Salt and black pepper, to taste
  • Chives or green onions, thinly sliced (for garnish)
  • Sour cream (optional, for serving)

Method
 

  1. Prep the base: Peel and dice the potatoes into 1/2- to 3/4-inch cubes. Dice the onion, carrots, and celery. Mince the garlic. This ensures even cooking and a creamy blend later.
  2. Layer in the slow cooker: Add potatoes, onion, carrots, celery, garlic, thyme, bay leaf, and a generous pinch of salt and pepper. Pour in the broth. Stir to combine.
  3. Cook low and slow: Cover and cook on Low for 6–8 hours or High for 3–4 hours, until the potatoes are very tender and easily smashed with a spoon.
  4. Make a quick roux: About 20 minutes before serving, melt the butter in a small pan. Whisk in the flour and cook for 1 minute. Slowly whisk in 1 cup of the hot soup liquid to make a smooth slurry. Stir this back into the slow cooker. (Use 1 1/2 tablespoons cornstarch whisked with 2 tablespoons cold water if gluten-free.)
  5. Mash or blend: Remove the bay leaf. Use a potato masher to mash some of the potatoes right in the slow cooker, leaving some chunks for texture. For extra silky soup, blend 2–3 cups in a blender or use an immersion blender, then return it to the pot.
  6. Add the cream and cheese: Stir in the heavy cream and shredded cheddar until melted and smooth. Taste and adjust seasoning with more salt and pepper as needed.
  7. Crisp the bacon: If using bacon, cook until crisp, then crumble. Stir some into the soup and save some for topping.
  8. Garnish and serve: Ladle into bowls and finish with bacon, chives, extra cheddar, and a small dollop of sour cream if you like.