There is something about a slow cooker that turns humble potatoes into pure velvet. This crockpot potato soup starts with diced russets and gold potatoes simmering low with onion, garlic, and a whisper of thyme, then finishes with cream cheese and sharp cheddar for a soup that tastes like it simmered all day (because it did).
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The trick is in the finish: a quick cornstarch slurry thickens the broth without flour lumps, and mashing a portion of the potatoes against the side of the insert gives you that chowder-like body while keeping plenty of tender chunks. It is a dump-and-go recipe that still feels made with care.
Serve it in bread bowls, top it with crispy bacon and scallions, and watch a pot that serves six disappear in one sitting. It freezes beautifully too, so consider doubling it.
Why You'll Love This Recipe
About the Ingredients
3 lb (1.36 kg) russet potatoes, peeled and cut into 1-inch cubes (about 6 medium)
Russets break down into a creamy texture; swap in Yukon Golds for a buttery, chunkier soup. Choose potatoes that are firm with no green spots, and store them in a cool dark place rather than the fridge.
1 medium yellow onion, finely diced (about 1 cup / 160 g)
Yellow onion gives the sweetest slow-cooked flavor; a leek (white part only) is a lovely milder substitute. Buy onions with dry, papery skins and no soft spots.
3 cloves garlic, minced (about 1 tablespoon)
Fresh garlic is best, but 1 teaspoon of garlic powder can stand in if you are out. Look for firm, heavy heads with tight cloves.
4 cups (960 ml) low-sodium chicken broth
Use vegetable broth to keep it vegetarian; homemade stock makes it even richer. Choose a broth with under 500 mg sodium per cup so you control the seasoning.
1 teaspoon dried thyme
Crush the thyme between your fingers before adding to release its oils; 1 tablespoon fresh thyme works too. Check that dried herbs still smell fragrant before using.
1 teaspoon kosher salt, plus more to taste
Kosher salt is less dense than table salt, so taste before adding more. If using table salt, start with 1/2 teaspoon.
1/2 teaspoon freshly ground black pepper
Fresh-cracked pepper blooms in the heat of the soup; pre-ground works in a pinch. Grind coarsely for the best aroma.
4 oz (113 g) cream cheese, cut into cubes and softened
Neufchatel (light cream cheese) melts more easily and cuts calories; let it sit at room temperature 20 minutes first. Buy the block, not the tub, for smoother melting.
1 1/2 cups (170 g) shredded sharp cheddar cheese
Sharp cheddar adds the most flavor; Gruyere or smoked gouda are delicious swaps. Shred it yourself from a block, since pre-shredded cheese contains anti-caking agents that can turn grainy.
1/3 cup (80 ml) heavy cream
Half-and-half or whole milk works for a lighter soup; add it off the heat so it does not curdle. Choose cream with no added gums for the cleanest flavor.
2 tablespoons cornstarch whisked into 3 tablespoons cold water
Arrowroot powder or a flour-and-water slurry can substitute; whisk just before adding so it does not settle. Keep cornstarch in a sealed jar so it stays clump-free.
6 slices bacon, cooked and crumbled, plus sliced scallions, for serving
Omit the bacon and use smoked paprika for a vegetarian version; turkey bacon crisps well too. Cook bacon on a sheet pan at 400 F (204 C) for 18 to 20 minutes for hands-off crumbles.
Tips & Tricks
- Do not cut the potatoes too small. One-inch cubes hold their shape through 6 hours on low; anything smaller dissolves into paste before the soup is done.
- Add dairy at the very end. Stirring cream cheese and cream in during the last 30 minutes prevents the curdling that happens when dairy simmers for hours.
- Thicken while hot, then rest. Whisk the cornstarch slurry into bubbling soup and let it simmer 10 minutes uncovered; it reaches full thickness as it cools slightly.
- Salt in layers. Season the potatoes when they go in, then taste again after the cheese, since cheddar brings its own salt.
Pro Tips
Step-by-Step Instructions
1. Layer the Base
Add the cubed potatoes, diced onion, minced garlic, chicken broth, dried thyme, kosher salt, and black pepper to a 6-quart slow cooker. Stir once so the seasoning distributes evenly and the potatoes are mostly submerged.
2. Slow Cook on Low
Cover and cook on low for 6 hours (or on high for 3 1/2 hours) until the potatoes are fork-tender and crush easily against the side of the insert. The broth should be gently bubbling at the edges when you lift the lid.
3. Mash for Texture
Mash roughly one-third of the potatoes against the side of the slow cooker with a wooden spoon or potato masher, leaving the rest chunky. This releases starch that thickens the soup naturally.
4. Thicken the Broth
Whisk the cornstarch with 3 tablespoons cold water until smooth, then stir it into the soup. Cover and cook on high for 10 minutes until the broth visibly thickens and coats the back of a spoon.
5. Melt the Cream Cheese
Reduce the slow cooker to warm, add the softened cream cheese cubes, and stir gently for 2 to 3 minutes until fully melted with no visible lumps. Keep the temperature low so the dairy does not curdle.
6. Add Cream and Cheddar
Turn the slow cooker off, stir in the heavy cream, then add the shredded cheddar a handful at a time, stirring until each addition melts smoothly. Taste and adjust salt and pepper.
7. Serve and Top
Ladle into warm bowls and top with crumbled bacon and sliced scallions. Serve immediately while the cheese is still glossy and the soup is steaming.
Delicious Variations
Loaded Baked Potato
Stir in 1/2 cup sour cream with the cream and top with extra bacon, chives, and a shower of cheddar for a baked-potato-in-a-bowl version.
Broccoli Cheddar Potato
Add 3 cups of small broccoli florets during the last 45 minutes on high so they stay bright green and tender-crisp.
Spicy Southwest
Swap thyme for 1 teaspoon cumin and 1/2 teaspoon smoked paprika, use pepper jack instead of cheddar, and finish with diced green chiles and cilantro.
How to Store The Best Crockpot Potato Soup Recipe for Creamy Comfort
Refrigerator
Store in an airtight container in the refrigerator for up to 4 days; the soup thickens as it chills, so loosen with a splash of broth when reheating.
Freezer
Freeze in portioned containers for up to 3 months, but note that dairy-based soups can separate slightly; whisk vigorously while reheating and add a splash of cream to restore silkiness.
Reheating
Reheat gently on the stovetop over medium-low heat, stirring often, until it reaches 165 F (74 C); avoid boiling, which can make the dairy grainy.
Frequently Asked Questions
Q: Can I put raw potatoes in the crockpot for potato soup?
Yes, raw cubed potatoes are exactly what this recipe calls for and they cook perfectly in 6 hours on low. Cut them into even 1-inch pieces so they finish at the same time, and keep them submerged in broth for even cooking.
Q: Why did my crockpot potato soup turn out grainy?
Grainy soup usually means the dairy was added too early or the soup boiled after the cheese went in. Add cream cheese and cream at the end on warm or off heat, and stir cheddar in only after the slow cooker is turned off.
Q: How do I thicken potato soup without flour?
A cornstarch slurry is the easiest flour-free thickener, and mashing some of the potatoes adds natural body too. Whisk 2 tablespoons cornstarch into 3 tablespoons cold water and simmer 10 minutes for a silky, lump-free texture.
Q: Can I make this crockpot potato soup in a pressure cooker instead?
Yes, cook the potatoes, onion, garlic, broth, and seasonings on high pressure for 8 minutes with a 10-minute natural release, then finish with the mash, slurry, and dairy steps. The flavor is nearly identical, though the slow cooker version is slightly richer.
Q: Can I leave the potato skins on for this soup?
You can leave thin-skinned potatoes like Yukon Gold unpeeled for a rustic texture and extra fiber. Russet skins are thicker and can turn tough, so peel those for the creamiest result.
Grab your slow cooker and a bag of potatoes, and let this creamy soup simmer while you get on with your day. If you make it, snap a photo of your loaded bowl and let me know in the comments which topping combination won your family over.
The Best Crockpot Potato Soup Recipe for Creamy Comfort
The Best Crockpot Potato Soup Recipe delivers velvety, cheesy comfort with almost no hands-on work, making it the easiest cozy dinner you will make all week.
🧂 Ingredients
- 3 lb (1.36 kg) russet potatoes, peeled and cut into 1-inch cubes (about 6 medium)
- 1 medium yellow onion, finely diced (about 1 cup / 160 g)
- 3 cloves garlic, minced (about 1 tablespoon)
- 4 cups (960 ml) low-sodium chicken broth
- 1 teaspoon dried thyme
- 1 teaspoon kosher salt, plus more to taste
- 1/2 teaspoon freshly ground black pepper
- 4 oz (113 g) cream cheese, cut into cubes and softened
- 1 1/2 cups (170 g) shredded sharp cheddar cheese
- 1/3 cup (80 ml) heavy cream
- 2 tablespoons cornstarch whisked into 3 tablespoons cold water
- 6 slices bacon, cooked and crumbled, plus sliced scallions, for serving
📋 Instructions
- 1Layer the Base — Add the cubed potatoes, diced onion, minced garlic, chicken broth, dried thyme, kosher salt, and black pepper to a 6-quart slow cooker. Stir once so the seasoning distributes evenly and the potatoes are mostly submerged.
- 2Slow Cook on Low — Cover and cook on low for 6 hours (or on high for 3 1/2 hours) until the potatoes are fork-tender and crush easily against the side of the insert. The broth should be gently bubbling at the edges when you lift the lid.
- 3Mash for Texture — Mash roughly one-third of the potatoes against the side of the slow cooker with a wooden spoon or potato masher, leaving the rest chunky. This releases starch that thickens the soup naturally.
- 4Thicken the Broth — Whisk the cornstarch with 3 tablespoons cold water until smooth, then stir it into the soup. Cover and cook on high for 10 minutes until the broth visibly thickens and coats the back of a spoon.
- 5Melt the Cream Cheese — Reduce the slow cooker to warm, add the softened cream cheese cubes, and stir gently for 2 to 3 minutes until fully melted with no visible lumps. Keep the temperature low so the dairy does not curdle.
- 6Add Cream and Cheddar — Turn the slow cooker off, stir in the heavy cream, then add the shredded cheddar a handful at a time, stirring until each addition melts smoothly. Taste and adjust salt and pepper.
- 7Serve and Top — Ladle into warm bowls and top with crumbled bacon and sliced scallions. Serve immediately while the cheese is still glossy and the soup is steaming.
