Creamy Crockpot Potato Soup with Roasted Garlic Oil

There’s nothing quite like a comforting bowl of homemade potato soup, especially when the weather turns chilly. This Crockpot Potato Soup recipe is incredibly easy to make, delivering a creamy and satisfying meal with minimal effort. What sets this recipe apart is a simple yet gourmet touch: a swirl of roasted garlic oil that elevates the flavor to a whole new level. Get ready to learn how to make this classic soup in your slow cooker, complete with tips for variations, serving suggestions, and storage solutions.

Why You’ll Love This Potato Soup Recipe

This Crockpot Potato Soup is more than just a simple meal; it’s an experience. Here’s what makes it so special:

Unique Twist: The roasted garlic oil takes this soup from ordinary to extraordinary. It’s a simple addition that makes a huge difference.

Flavor Depth: Roasting the garlic mellows its flavor, bringing out a subtle sweetness that beautifully complements the creamy potatoes. The infused oil adds a luxurious mouthfeel and a delightful garlic aroma to every spoonful.

Comfort Food: Potato soup is the ultimate comfort food, evoking feelings of warmth and nostalgia with every bite.

Effortless Cooking: Using a slow cooker makes this recipe incredibly easy. Just set it and forget it, allowing you to focus on other things while a delicious meal cooks itself.

Customizable: This recipe is easily adapted to different dietary needs, whether you’re looking for a vegetarian or dairy-free option.

Ingredients Needed

• 2 tablespoons unsalted butter*
• 1 small yellow onion (diced)
• 3 large carrots (scrubbed and diced)
• 2 pounds Yukon gold potatoes (peeled and cut into 1/2-inch chunks)
• 1 teaspoon Italian seasoning
• 1 teaspoon kosher salt (plus additional to taste)
• 1/4 teaspoon cayenne pepper
• 3–4 cups reduced-sodium chicken broth ((or vegetable broth for a vegetarian soup))
• 1 can 2% evaporated milk ((12-ounces) )
• 3 tablespoons cornstarch
• 1 cup shredded sharp cheddar cheese (plus additional for serving)
• 1 cup nonfat plain Greek yogurt (plus additional for serving)
• Cooked crumbled bacon ((optional))
• Chopped fresh chives ((optional))

Ingredient Notes & Substitutions

Potatoes: I highly recommend using Yukon Gold potatoes for their creamy texture and naturally buttery flavor. If you prefer a starchier soup, Russet potatoes work well. Red potatoes, being waxy, will hold their shape better but won’t contribute as much to the creamy texture.

Broth: Reduced-sodium chicken broth allows you to control the salt level. For a vegetarian or vegan version, use vegetable broth.

Dairy: If you’re dairy-free, canned coconut milk makes a great substitute for evaporated milk. Regular dairy milk can also be used. For the Greek yogurt, use a vegan yogurt alternative. You may need to adjust the amount to achieve your desired consistency.

Cheese: Grating your cheddar cheese directly from the block ensures it melts smoothly into the soup. Pre-shredded cheese often contains cellulose, which can prevent it from melting as well.

Bacon: I love using center-cut bacon for this recipe. You can cook bacon in the oven at 400°F (200°C) for about 15-20 minutes, or in an air fryer at 375°F (190°C) for 10-12 minutes, for perfectly crispy results.

How to Make Crockpot Potato Soup

Let’s walk through the steps to create this comforting and flavorful Crockpot Potato Soup. I’ll share some sensory cues to help you along the way!

Step 1: Preparation

Lightly coat a 6-quart or larger slow cooker with nonstick spray. In a large skillet, melt the butter over medium heat. Add the diced yellow onion and sauté until softened and translucent, about 6 to 8 minutes. Be sure to stir frequently, adjusting the heat so that the onion doesn’t crisp or turn dark brown. The aroma of the softening onions will fill your kitchen, a delightful start to this comforting soup. Add the sautéed onion to the slow cooker.

Step 2: Slow Cooking

To the slow cooker, add the diced carrots, Yukon gold potatoes, Italian seasoning, kosher salt, cayenne pepper, and 3 cups of reduced-sodium chicken broth (or vegetable broth). Stir to combine all the ingredients. Cover the slow cooker and cook on low for 6 to 8 hours, or on high for 3 to 4 hours, until the potatoes and carrots are completely tender. Speaking of easy dinners, have you tried slow cooker cowboy casserole? The Italian seasoning will permeate the dish as it slowly cooks.

Step 3: Thickening and Finishing

While the vegetables are cooking, in a medium bowl, whisk together the can of evaporated milk and cornstarch until no lumps remain. This mixture will help thicken the soup. During the last 30 minutes of cooking, add the cornstarch/milk mixture to the slow cooker. Continue cooking for 30 additional minutes. You’ll notice the soup bubbling slightly and thickening as it simmers.

Step 4: Texture and Consistency

Just before serving, stir in the shredded sharp cheddar cheese and nonfat plain Greek yogurt. With a potato masher or a large spoon, mash about half of the potatoes directly in the slow cooker. Mashing some of the potatoes creates a wonderfully creamy texture. The soup will continue to thicken as it cools. If you prefer a thinner soup, add the remaining 1 cup of chicken broth until you reach your desired consistency (warm up the broth first to avoid lowering the soup’s temperature too much). Stir to combine, then season with additional salt and pepper to taste. Serve hot, topped with crumbled bacon, chopped fresh chives, and additional cheese or Greek yogurt as desired.

Roasting Garlic Oil: The Secret Ingredient

To make roasted garlic oil, preheat your oven to 400°F (200°C). Cut the top off a head of garlic, drizzle with olive oil, wrap in foil, and roast for 45-60 minutes, or until the cloves are soft and golden brown. Once cooled, squeeze the roasted garlic cloves into a bowl and mash them with a fork. Combine the mashed garlic with about 1/2 cup of good quality olive oil. Let it sit for at least 30 minutes to infuse the oil with the garlic flavor. Store leftover roasted garlic oil in an airtight container in the refrigerator for up to a week. Besides swirling it into your potato soup, try drizzling it on bread, roasted vegetables, or pasta!

Achieving the Perfect Soup Consistency

The type of potato you use greatly affects the soup’s consistency. Yukon Golds create a naturally creamy soup due to their lower starch content. If you want a thicker soup, use Russets, which are higher in starch. To thicken the soup, you can also use a cornstarch slurry (as we did in the recipe), potato starch, or a roux (butter and flour cooked together). If your soup is too thick, simply add more broth, milk, or water until you reach your desired consistency. For an ultra-smooth soup, use an immersion blender to blend all or part of the soup. Be cautious, as blending too much can make the soup gummy.

For more information, you can read about the different types of potatoes and how they affect cooking.

Pro Tips & Troubleshooting

Pro Tips

• Sauté the onions before adding them to the slow cooker to develop their flavor and sweetness.
• Grate the cheese directly off the block for better melting and a smoother texture.
• Use an immersion blender for a perfectly smooth soup, but be careful not to over-blend.
• Don’t overcook the potatoes, or they will become mushy and affect the soup’s texture.
• Add a swirl of roasted garlic oil just before serving for enhanced flavor and aroma.
• Taste and adjust the seasonings (salt, pepper, cayenne) before serving to ensure the flavors are balanced.

Common Mistakes to Avoid

• Using too much liquid, which can result in a watery soup. Start with less and add more as needed.
• Not sautéing the onions properly, which can leave a raw onion flavor in the soup.
• Adding cold broth to thin the soup, which can lower the temperature too much. Warm the broth before adding it.
• Overcooking the soup, which can cause the potatoes to break down completely and make the soup overly starchy.

Serving & Storage

Serving Ideas

Top your Crockpot Potato Soup with any of these delicious additions: crumbled bacon, diced chives, shredded cheddar cheese, a dollop of Greek yogurt or sour cream, crispy croutons, and of course, a swirl of roasted garlic oil. Serve it alongside crusty bread like ciabatta or rolls, Ranch Crackers, or a simple roasted vegetable side dish like Roasted Zucchini, Roasted Broccoli, or Roasted Brussels Sprouts. A crisp white wine or light beer pairs wonderfully with this soup.

Storage and Make-Ahead

To store leftover soup, let it cool completely and then transfer it to an airtight container. Store it in the refrigerator for up to 3-4 days. For longer storage, freeze the soup in freezer-safe containers for up to 2-3 months. Thaw it overnight in the refrigerator before reheating. Note that the texture may change slightly after freezing. To reheat the soup, gently warm it on the stovetop or in the microwave until heated through. If needed, add a splash of broth to thin the soup to your desired consistency.

Proper food safety is important when storing leftovers. You can learn more about safe cold food storage on FoodSafety.gov.

Conclusion

This creamy Crockpot Potato Soup is the perfect comfort food, especially when elevated with the unique twist of roasted garlic oil. It’s incredibly easy to make in the slow cooker, making it a convenient and satisfying meal for any day of the week. Even if you’re a beginner cook, you can easily make this recipe successfully. Feel free to experiment with different toppings and variations, such as making it vegetarian or dairy-free. Download the recipe card, share it with your friends, and explore other delicious soup recipes on the blog!

FAQ

What are the best potatoes to use for crockpot potato soup? Yukon Gold potatoes are ideal due to their creamy texture and low starch content. Russets can also be used for a starchier soup.

Can I make crockpot potato soup vegan or dairy-free? Yes! Use vegetable broth, coconut milk (or other non-dairy milk), and vegan cheese alternatives. Omit the bacon or use a plant-based bacon substitute.

How do I prevent potato soup from being watery? Use the correct ratio of liquid to potatoes. Avoid overcooking the potatoes. Thicken with a cornstarch slurry if needed.

What are some creative toppings for potato soup? Try roasted garlic oil, crumbled bacon, diced chives, shredded cheese, Greek yogurt, sour cream, croutons, or a sprinkle of red pepper flakes.

How long can I store crockpot potato soup and how do I reheat it? Store in the refrigerator for 3-4 days or in the freezer for 2-3 months. Reheat gently on the stovetop or in the microwave.

Can I add roasted garlic oil to enhance the flavor of the soup? Absolutely! A swirl of roasted garlic oil adds a delicious gourmet touch to the finished soup.