Slow Cooker Potato & Onion Soup
Description
This Slow Cooker Potato & Onion Soup is creamy, cozy, and packed with comforting flavor. Tender potatoes and sweet onions slowly simmer together in a rich, savory broth until perfectly soft and delicious. It’s an easy set-it-and-forget-it meal that’s perfect for chilly nights, busy weekdays, or comforting family dinners.
Ingredients
- 6 medium potatoes, peeled and diced
- 2 large onions, sliced
- 4 cups chicken or vegetable broth
- 3 cloves garlic, minced
- 1 teaspoon dried thyme
- 1 teaspoon garlic powder
- 1/2 teaspoon smoked paprika
- Salt and black pepper, to taste
- 1 cup heavy cream or milk
- 1 cup shredded cheddar cheese
- 2 tablespoons butter
- Fresh parsley or chives for garnish
Instructions
- Add potatoes, onions, garlic, broth, thyme, garlic powder, smoked paprika, salt, and pepper to the slow cooker.
- Stir well to combine.
- Cover and cook on LOW for 6–7 hours or HIGH for 3–4 hours until potatoes are very tender.
- Use a potato masher or immersion blender to partially blend the soup for a creamy texture.
- Stir in butter, heavy cream, and cheddar cheese.
- Cook for another 10–15 minutes until cheese is melted and soup is creamy.
- Taste and adjust seasoning if needed.
- Garnish with parsley or chives before serving.
Tips
- Add cooked bacon for extra flavor.
- Use Yukon Gold potatoes for a creamier soup.
- Stir in sour cream for extra richness.
- Serve with crusty bread or grilled cheese sandwiches.
Q & A
Can I make this vegetarian?
Yes! Use vegetable broth instead of chicken broth.
Can I freeze this soup?
Yes, but dairy-based soups may separate slightly when reheated. Stir well after warming.
How do I make it thicker?
Mash more potatoes or add a cornstarch slurry.
Can I add other vegetables?
Absolutely. Carrots, celery, or corn work very well in this soup.

