Ingredients

1 to 1¼ pounds smoked kielbasa, sliced into ¼-inch rounds

2 tablespoons butter

1 tablespoon olive oil

1 large yellow onion, diced

2 medium carrots, peeled and diced

2 celery stalks, diced

3 to 4 cloves garlic, minced

2 pounds potatoes, peeled and cut into ¾-inch cubes (Russet or Yukon Gold)

4 cups low-sodium chicken broth or stock

1 to 2 cups water, as needed

1 teaspoon kosher salt, plus more to taste

½ teaspoon black pepper

1 teaspoon smoked paprika

½ teaspoon dried thyme or Italian seasoning

1 bay leaf (optional)

1 to 1½ cups whole milk or half-and-half

2 to 3 tablespoons sour cream (optional)

1 to 1½ cups shredded sharp cheddar cheese (optional)

1 cup frozen corn or peas (optional)

2 to 3 green onions, thinly sliced, for topping

Chopped fresh parsley or dill, for topping

Extra shredded cheddar, for topping (optional)

Crumbled cooked bacon, for topping (optional)

Instructions

Step 1: Heat olive oil in a large pot over medium to medium-high heat. Add the kielbasa slices in a single layer and cook for 3 to 5 minutes until browned and slightly crisp. Remove with a slotted spoon and set aside, leaving the fat in the pot.

Step 2: Add butter to the pot and melt. Stir in the diced onion, carrot, and celery. Cook for 5 to 7 minutes until the onion is translucent and veggies soften.

Step 3: Add the minced garlic and cook for about 30 seconds until fragrant. Scrape the pot bottom to loosen any browned bits for extra flavor.

Step 4: Add potato cubes, salt, pepper, smoked paprika, thyme, and bay leaf (if using). Stir to coat the potatoes and vegetables evenly with spices.

Step 5: Pour in the chicken broth and enough water to just cover the potatoes. Bring the mixture to a gentle boil, then reduce heat to a simmer. Partially cover and cook for 15 to 20 minutes until potatoes are tender.

Step 6: For a thicker soup, mash some potatoes in the pot with a masher or pulse a few times with an immersion blender, leaving plenty of chunks.

Step 7: Return the browned kielbasa and any juices to the pot. Add frozen corn or peas if using. Simmer for 5 more minutes to combine flavors.

Step 8: Lower heat to low and slowly stir in the milk or half-and-half. Heat gently for 3 to 5 minutes, avoiding boiling.

Step 9: Stir in sour cream if using, then add shredded cheddar cheese gradually, stirring after each addition until melted and smooth.

Step 10: Remove the bay leaf. Ladle soup into bowls and top with green onions, fresh herbs, extra cheese, and bacon if desired. Serve hot and enjoy.

Tips & Variations

Use turkey kielbasa for a lighter but still smoky flavor.

Swap half the potatoes for cauliflower florets to lighten the soup while keeping creaminess.

Add drained white beans for more protein and a heartier texture.

Include chopped cabbage or kale in the last 10 minutes of simmering for extra greens.

Try spicy kielbasa or smoked andouille sausage, reducing smoked paprika to balance heat.

Use low-sodium broth to control salt, as kielbasa and cheese add saltiness.

Brown the kielbasa thoroughly for rich flavor and crispy edges.

Stir cheese in gently over low heat to prevent sticking and curdling.

Storage

Cool the soup to room temperature within 1 to 2 hours, then transfer to airtight containers. Store in the refrigerator for 3 to 4 days; the flavors will deepen and the soup may thicken. Freeze in suitable containers for up to 2 months, leaving space for expansion. Reheat gently on the stove over low to medium heat, stirring often and adding broth or milk if needed to thin. Microwaving in short bursts with stirring between intervals also works well for individual portions.

FAQs

Can I make this soup vegetarian?

To make a vegetarian version, omit the kielbasa and use vegetable broth. You can add smoked paprika or liquid smoke to retain some smoky flavor. Adding beans and extra vegetables helps keep it hearty and satisfying.

What type of potatoes work best for this soup?

Russet potatoes provide a softer, creamier texture as they break down more during cooking. Yukon Gold potatoes hold their shape better and add a buttery flavor. Use a mix if you prefer a balance of creaminess and structure.