This Cajun potato soup is cozy, creamy, and just spicy enough. Browned andouille, soft potatoes, and a cheddar-rich broth give you smoky heat in every spoonful. It reheats beautifully, so you can make it ahead and serve it the next night. If you like this kind of weeknight comfort, try our Creamy Cajun Sausage Pasta next.
Why You’ll Love This Recipe
This is a one-pot dinner that feels special without extra work. The sausage builds a savory base, the potatoes turn silky in the broth, and the cream and cheddar finish it with a smooth, spoon-coating texture. Heat is easy to control, leftovers keep well, and it works just as well for Sunday supper as it does for a make-ahead weekday lunch.
- Ready in a little over an hour
- Uses simple grocery-store ingredients
- Easy to tone down or turn up the spice
- Even better the next day
Tips for Success
- Brown the andouille first and leave the drippings in the pot. That fond is where a lot of the smoky flavor comes from.
- Cut the potatoes into even cubes so they soften at the same time. Russets give the soup body as the edges break down.
- Taste the broth before adding the cream. Cajun seasoning blends vary, and the sausage already brings salt.
- Shred the cheddar yourself. Pre-shredded cheese can stay grainy instead of melting smoothly.
- Keep the soup at a gentle simmer after the cream and cheese go in. A hard boil can cause the dairy to separate.
Ingredients and Substitutions
Andouille sausage
This smoked pork sausage is what gives the soup its Cajun backbone. It is usually sold fully cooked, so you only need to brown the slices. Kielbasa, smoked bratwurst, or another smoked sausage will work if andouille is hard to find. The soup will be milder unless you add a pinch more cayenne.
Cajun seasoning
Use your favorite blend. If you do not have one, mix paprika, garlic powder, onion powder, black pepper, oregano, and a little cayenne. Taste before adding extra salt, since many blends are already salty.
Chicken broth
This is the liquid base. Chicken stock works too. If your broth is unsalted, you may want to keep the ½ teaspoon kosher salt. If it is salty, start with less and adjust at the end.
Potatoes
Russets are the best fit here. They soften and thicken the broth as they cook. Yukon gold or red potatoes can stand in. Keep the cubes even so they finish at the same time.
Heavy cream
This version uses ¾ cup for a slightly richer finish. Half-and-half can replace it in a pinch, but the soup will be a little thinner.
Cheddar
Mild cheddar melts into the broth without taking over. Sharp cheddar is a good swap if you want a bolder cheese flavor. Shred it yourself so it melts smoothly. You can also serve the cheese on the side and let everyone add their own.
Heat level
The kick comes from Cajun seasoning, cayenne, and andouille. For a milder pot, cut the cayenne or use a milder smoked sausage. For more heat, add another pinch of cayenne or an extra ¼ teaspoon Cajun seasoning.
Storage Tips
Cool the soup, then refrigerate in an airtight container for 3 to 4 days. Reheat gently on the stove or in the microwave, adding a splash of broth if it thickens.
To freeze, cool completely and portion into freezer-safe containers, leaving a little room at the top. Freeze for up to 2 to 3 months. Thaw in the refrigerator overnight, then warm slowly so the cream stays smooth.
Spicy Cajun Potato Soup
Ingredients
Sausage
- 1 tablespoon vegetable oil
- 1 ring (13.5 ounces) andouille sausage, sliced into ¼-inch rounds
Vegetables
- 1 large onion, diced (about 1 cup)
- ½ cup diced celery, (about 1 rib)
- ½ red bell pepper, seeded and diced
- 2 teaspoons garlic, minced
Soup
- 1 teaspoon Cajun seasoning
- ½ teaspoon kosher salt
- ½ teaspoon black pepper
- ½ teaspoon paprika
- ¼ teaspoon cayenne pepper
- 4 cups (960 g) chicken broth
- 4 large russet potatoes, peeled and cubed
- ¾ cup (179 g) heavy whipping cream
- 1 cup (113 g) mild cheddar cheese, shredded
- Chopped parsley, for garnish
Instructions
Sausage
- Heat the oil in a large pot over medium heat.
- Add the sausage and cook, stirring now and then, until browned, 3 to 4 minutes.
- Transfer the sausage to a plate and keep the drippings in the pot.
Vegetables
- Add the onion, celery, and bell pepper to the same pot.
- Cook until softened, 5 to 8 minutes.
- Stir in the garlic and cook for 1 minute.
Soup
- Add the Cajun seasoning, salt, black pepper, paprika, cayenne, chicken broth, and potatoes.
- Reduce the heat and simmer for 20 to 25 minutes, until the potatoes are fork-tender.
- Return the sausage to the pot. Stir in the heavy cream and cheddar.
- Simmer for 5 minutes, until the cheese melts and the soup is hot.
- Garnish with parsley and serve warm.
This recipe was inspired by Cajun Potato Soup by Iamhomesteader.com