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Creamy One-Pot Cajun Potato Soup with Andouille Sausage

Close-up of a rich, creamy bowl of Cajun potato soup topped with chunks of sausage, bacon, and herbs.

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This rich, creamy Cajun Potato Soup brings bold Southern flavor to your table. Made with tender potatoes, smoky andouille sausage, and a blend of Cajun spices, this easy one-pot recipe is perfect for a hearty, soul-warming weeknight dinner.

Ingredients

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  • 1 tablespoon olive oil
  • 1 pound smoked andouille sausage, sliced
  • 1 large yellow onion, chopped
  • 2 celery stalks, chopped
  • 2 cloves garlic, minced
  • 1 teaspoon homemade cajun seasoning (or store-bought blend)
  • 1/2 teaspoon dried thyme
  • 4 cups chicken broth
  • 2 pounds russet potatoes, peeled and diced
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 cup heavy cream
  • 1 cup shredded sharp cheddar cheese
  • 2 tablespoons chopped fresh parsley, for garnish

Instructions

  1. Heat the olive oil in a large pot or Dutch oven over medium heat. Add the sliced andouille sausage and cook until browned, about 5 to 7 minutes. Remove the sausage with a slotted spoon and set it aside, leaving about 1 tablespoon of drippings in the pot.
  2. Add the chopped onion and celery to the pot. Cook until softened, about 5 minutes. Add the minced garlic, Cajun seasoning, and thyme. Cook for 1 minute until fragrant.
  3. Pour in the chicken broth. Add the diced potatoes, salt, and pepper. Bring the mixture to a boil, then reduce the heat to low, cover, and simmer for 15 to 20 minutes, or until the potatoes are fork-tender.
  4. Remove about 2 cups of the soup mixture (mostly potatoes and broth) and transfer it to a blender or use an immersion blender directly in the pot. Blend until smooth and creamy. Return the blended mixture to the pot if you used a separate blender.
  5. Stir in the cooked andouille sausage, heavy cream, and shredded cheddar cheese. Cook over low heat, stirring constantly, until the cheese is melted and the soup is heated through. Do not let the soup boil after adding the cream and cheese.
  6. Taste and adjust salt and pepper if needed. Serve the spicy potato chowder hot, garnished with fresh parsley.

Notes

  • For a thicker soup without blending, mash some of the potatoes against the side of the pot with a spoon as they cook.
  • If you do not have andouille sausage, smoked sausage or bacon works as a substitute in this comfort food soup recipe.
  • Adjust the amount of Cajun seasoning to control the heat level of your zesty potato soup.

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