Slow Cooker Potato Soup

BY Emily Carter January 3, 2026

The transition into cooler weather often brings a desire for hearty, bowl-based meals that require minimal active supervision in the kitchen. This Slow Cooker Potato Soup provides a reliable solution for those seeking a rich, velvety texture without relying on heavy cream. By utilizing the gentle, consistent heat of a crock pot, the potatoes soften beautifully into the broth, absorbing the savory notes of the onions and stock. A final thickening step on the stovetop ensures a luxurious consistency that satisfies. It is a practical, dependable dish for any home cook looking to maximize flavor while managing a busy daily schedule.

Table of Contents

Ingredients

6 slices cooked bacon, diced
3 to 4 cups good-quality chicken or vegetable stock
2 pounds Yukon gold potatoes, peeled (if desired) and diced
1 medium white or yellow onion, peeled and diced
4 tablespoons bacon grease (or butter)
1/3 cup all-purpose flour
1 (12-ounce) can two percent evaporated milk
1 cup shredded reduced-fat sharp cheddar cheese
1/2 cup plain low-fat Greek yogurt or low-fat sour cream
1 teaspoon Kosher salt, or more to taste
1/2 teaspoon freshly-cracked black pepper
Optional toppings: thinly-sliced green onions or chives, extra shredded cheese, extra bacon, sour cream

Instructions

Place the diced cooked bacon, 3 cups of the chicken or vegetable stock, the diced Yukon gold potatoes, and the diced onion into the basin of a large slow cooker. Stir the ingredients to ensure they are well combined.
Secure the lid and set the device to cook on low for 6 to 8 hours, or on high for 3 to 4 hours. The potatoes should be completely tender and easily pierced with a fork when finished.
As the slow cooking cycle nears completion, prepare the thickening agent on the stove. Place a small saucepan over medium-high heat and add the butter or reserved bacon grease.
Once the fat has melted, whisk in the all-purpose flour until the mixture is smooth. Cook the roux for 1 minute, stirring occasionally to remove the raw flour taste.
Slowly pour the two percent evaporated milk into the saucepan while whisking constantly. Continue to cook and stir until the liquid reaches a simmer and develops a thick, gravy-like consistency.
Pour this thickened milk mixture directly into the slow cooker with the potato base and stir thoroughly.
Incorporate the shredded cheddar cheese, Greek yogurt (or sour cream), salt, and black pepper. Stir until the cheese is melted and the base is uniform.
To achieve a thicker texture, use a potato masher to crush approximately half of the potatoes directly in the crock pot. If a thinner consistency is preferred, stir in an additional 1 to 2 cups of warmed stock.
Taste the soup and adjust the salt and pepper levels as necessary.
Serve immediately while warm, adding your preferred garnishes.

Step-by-Step Details

The Initial Infusion

When you first combine the potatoes, onions, and bacon in the slow cooker, the aroma is mild. However, as the hours pass, the starch from the Yukon golds begins to mingle with the savory chicken stock. The onions soften until they are translucent and nearly melt into the liquid, providing a deep, foundational sweetness.

Creating the Roux

The stovetop portion of this recipe is where the texture is defined. As you whisk the evaporated milk into the flour and fat, the liquid transforms from a thin white consistency into a glossy, heavy cream-like base. You will notice the resistance against your whisk increase as the starches in the flour expand and thicken the milk.

Final Integration

Adding the roux to the slow cooker causes an immediate change in the soup’s appearance. The translucent broth becomes opaque and creamy. When you stir in the sharp cheddar cheese and Greek yogurt, the soup takes on a pale golden hue, and the scent of aged cheese and savory bacon becomes the dominant fragrance in the kitchen.

Pro Tips

Choose the Right Potato: While other varieties work, Yukon golds provide a naturally buttery flavor and a creamy interior that holds up better during long cooking cycles than starchy Russets.
The Fat Choice: If you fry your bacon fresh, use the rendered grease for the roux instead of butter. This adds a smoky, salty depth to the base of the soup that cannot be replicated with butter alone.
Prevent Curdling: When adding the Greek yogurt or sour cream at the end, ensure the slow cooker is not on a vigorous “high” setting. Stirring it in at the very end prevents the dairy from breaking or curdling.
Warm Your Extra Stock: If you find the soup too thick and want to thin it out, always warm the extra chicken stock before adding it. Adding cold liquid can shock the starches and change the texture of the soup.
Uniform Chopping: Try to dice the potatoes into uniform half-inch pieces. This ensures that every piece of potato reaches the same level of tenderness at the same time, preventing a mix of mushy and firm bites.

Variations or Substitutions

Vegetarian Adjustment: To make this dish meat-free, swap the chicken stock for a robust vegetable stock and omit the bacon. Using two to three teaspoons of Old Bay seasoning can help replace the savory complexity lost by removing the bacon.
Potato Alternatives: If Yukon golds are unavailable, Russet potatoes offer a fluffier, more traditional “baked potato” texture, while red potatoes will provide a slightly firmer bite if you prefer a chunkier soup.
Dairy Swaps: Sour cream offers a more traditional, tangy flavor profile, whereas plain Greek yogurt provides a similar creaminess with an extra boost of protein.
Cheese Varieties: While sharp cheddar is recommended for its bold flavor, a smoked gouda or a mild colby jack can be used to shift the flavor profile toward smoky or creamy, respectively.

Serving Suggestions

This soup is quite filling on its own, but it pairs excellently with a crisp green salad tossed in a light vinaigrette to balance the richness of the dairy. A side of crusty sourdough bread or warm garlic knots is also ideal for dipping into the thick broth. For a “loaded” experience, set out small bowls of chives, extra crispy bacon bits, and additional shredded cheese so each person can customize their bowl to their liking.

FAQs

Can I freeze this potato soup?

This specific recipe does not freeze well. Because it contains potatoes and a milk-based roux, the texture tends to become grainy and the liquid can separate once thawed and reheated. It is best enjoyed fresh or from the refrigerator within three days.

Is it necessary to peel the potatoes?

Peeling is a matter of personal preference. Yukon gold skins are very thin and tender, so leaving them on adds a rustic look and extra nutrients. However, for the smoothest possible texture, peeling is recommended.

What if I don’t have a potato masher?

You can use the back of a large wooden spoon to press some of the potatoes against the side of the slow cooker crock. This will break them down enough to release their starches and thicken the soup without needing specialized tools.

Nutrition Information

Nutrient	Amount Per Serving
Calories	345
Total Fat	14g
Saturated Fat	8g
Cholesterol	45mg
Sodium	820mg
Total Carbohydrates	38g
Dietary Fiber	4g
Sugars	7g
Protein	18g

Disclaimer

Nutrition information is an estimate and may vary based on preparation and ingredients used.