
There are chilly days when nothing but a rich and spicy bowl of Cajun Potato Soup will do. Creamy potatoes, smoky andouille sausage, and the unmistakable signature kick of Cajun spices all come together in this dish. It is ideal when you need a filling comforting meal that satisfies everyone at the table.
When my youngest first tasted this soup, she asked for seconds twice. Now it is my go-to meal for family gatherings in the colder months because it never fails to deliver big flavor with very little effort.
Ingredients
- Vegetable oil: adds just enough fat for sautéing and helps release sausage flavors choose a neutral oil for best results
- Andouille sausage: brings a deep smoky spice the higher quality the sausage the richer the soup
- Large onion: supplies sweetness and depth aim for fresh firm onions
- Celery: a subtle aromatic that balances heat always use crisp stalks without browning
- Red bell pepper: imparts sweetness and vibrant color look for firm unblemished peppers
- Minced garlic: punches up the savoriness fresh garlic cloves are best
- Cajun seasoning: provides signature heat and earthiness blends with paprika thyme and peppercorns make the most flavorful bowls
- Kosher salt and black pepper: essential to balance the soup and enhance other flavors opt for flaky kosher salt for most even seasoning
- Paprika: honeyed smokiness for warmth prefer a mild sweet paprika to keep control over the heat
- Cayenne pepper: builds bold heat just add a pinch at first and taste as you go
- Chicken broth: the savory base choose low sodium boxed or homemade for more control over flavor
- Russet potatoes: creamy and sturdy for soups peel thoroughly and chop evenly for consistent cooking
- Heavy whipping cream: brings richness and a silky finish always use real cream not substitutes
- Mild cheddar cheese: melt-in texture with enough tang shred from a block for best meltability
- Parsley: fresh garnish for a pop of color and herbal lift choose flat-leaf if you can
Instructions
- Sauté the Sausage:
- Heat the vegetable oil in a large heavy pot over medium heat until shimmering. Add all the andouille sausage slices in one layer. Allow them to brown deeply for about four minutes while turning them once halfway through. Transfer the sausage to a plate using a slotted spoon so they stay crisp and flavorful.
- Build the Flavor Base:
- Lower the heat slightly and add the diced onion, celery, and red bell pepper to the pot. Stir and cook for at least eight minutes giving the vegetables time to release their aroma and soften. Add the minced garlic and continue stirring for one extra minute to mellow its sharpness.
- Simmer the Potatoes:
- Notice the browned bits on the bottom of the pot. Sprinkle in the Cajun seasoning, salt, black pepper, paprika, and cayenne pepper. Pour in the chicken broth and add all the cubed potatoes. Use your spoon to scrape up any brown bits because these are packed with flavor. Bring to a simmer and cook uncovered for about twenty minutes until the potatoes are fork tender and nearly falling apart.
- Finish and Enrich:
- Return the browned sausage to the pot. Pour in the heavy cream and sprinkle in the cheddar cheese. Gently stir while everything heats through for at least five minutes or until the cheese is completely melted and the soup looks creamy.
- Garnish and Serve:
- Ladle into bowls and finish with a handful of fresh chopped parsley for brightness. Serve very warm and enjoy the creamy texture with spicy sausage in every bite.

The andouille sausage is my favorite part because it adds a punch of smoke and heat that even my most spice loving relatives rave about. Cooking this soup reminds me of winter evenings when the kitchen filled with laughter and steam rising from steaming bowls.
How to Store Cajun Potato Soup
Store cooled leftovers in airtight containers in the fridge for three days at most. For longer storage freeze in individual portions and thaw overnight in the fridge before reheating. Reheat the soup gently on the stove to keep the dairy smooth. Stir well so the cheese and cream reincorporate.
Ingredient Swaps for Dietary Needs
Try plant based sausage to keep the flavor but make it meat free. Swap chicken broth for vegetable for a vegetarian version that still has a rich base. Omit the cayenne to drop the heat if you are cooking for kids or anyone with a gentle palate. Use white cheddar if you want a sharper cheese flavor.
Creative Ways to Serve
Top with extra cheddar and bake for a cheesy crust similar to gratin potatoes. Add cooked corn kernels or chopped greens for extra texture and nutrition. Serve with crusty bread or crispy cornbread for a fully Southern spread.
A Taste of Cajun Culture
This soup celebrates the bold flavors of Louisiana’s classic cuisine. Cajun cooks often combine sausage potatoes and aromatic vegetables to create dishes meant for sharing. The heartiness of this recipe reflects the region’s welcoming spirit and love of flavor packed meals.
Seasonal Adaptations
In spring try subbing in sliced leeks for onion and add peas or asparagus to lighten the soup. For autumn toss in diced sweet potatoes along with the russets and use smoked paprika for an extra smoky depth. During peak summer use fresh local peppers and add a handful of fresh chopped tomatoes.
Success Stories
My neighbor asked for this recipe after trying it at a backyard potluck and she now teaches it at her church cooking classes. Several friends have swapped in turkey sausage which works beautifully. I have heard from three different families who double up to make plenty for lunch the next day they swear the flavors get even better.
Freezer Meal Conversion
Cool the soup completely before portioning. Freeze in quart containers with enough headspace for expansion. Reheat low and slow stirring regularly to reblend any separated dairy. Add a splash of fresh cream when reheating for a silky finish.

You can scale up this recipe easily for holiday gatherings or simmer a small pot on a stormy night just for comfort. If you love it spicy keep extra cayenne ready. This soup’s personality is warm and lively just like a true Cajun kitchen.
Common Recipe Questions
- → Can I use a different type of sausage?
Yes, you may substitute andouille with smoked sausage or even a plant-based sausage for a vegetarian-friendly option. Adjust cooking time as needed for alternative proteins.
- → How spicy is the soup?
The soup features a mild to medium spice from Cajun seasoning and cayenne pepper. Adjust the heat level by increasing or reducing the amount of cayenne pepper to your preference.
- → Can I make this soup ahead of time?
Absolutely! Prepare the soup in advance and refrigerate. Reheat gently on the stove and add a splash of broth or cream if it thickens after chilling.
- → What type of potatoes work best?
Russet potatoes are ideal for this soup because they break down slightly and help thicken the broth, but Yukon Gold potatoes can also be used for a creamier texture.
- → Is it possible to freeze leftovers?
Yes, the soup freezes well. Let it cool completely before transferring to airtight containers. Reheat slowly and stir well to maintain a creamy consistency.