Creamy Cajun Potato Soup Recipe

This cajun potato soup is thick, creamy and warm with spice, the kind of pot you make when you want dinner to feel like a hug with a little kick. Sliced smoked sausage gets browned until the edges crisp, then bell pepper and onion cook in the rendered fat before potatoes, broth and Cajun seasoning go in. A splash of cream at the end rounds everything out. It serves 6 and takes about 50 minutes, most of which is hands-off simmering.

Why You’ll Like This Cajun Potato Soup

Potato soup is simple, but it can taste flat if nothing in the pot has been browned. Here the sausage does the heavy lifting. It leaves behind smoky, seasoned fat that flavors the vegetables, and the slices stay chewy and a little crisp when stirred back in. The Cajun seasoning brings gentle heat that you can turn up or down to match your crowd.

• One pot: everything cooks in the same Dutch oven, so cleanup is easy.
• Naturally thick: a few mashed potatoes thicken the broth without any flour.
• Easy to adjust: mild, medium or properly hot, depending on the seasoning and how much you add.

Ingredients for Cajun Potato Soup

• 2 lbs potatoes, peeled and cut into 3/4-inch cubes
• 12 oz smoked andouille-style sausage, sliced into 1/4-inch rounds
• 1 medium green bell pepper, diced
• 1 medium red bell pepper, diced
• 1 large yellow onion, diced
• 3 cloves garlic, minced
• 1 tablespoon olive oil or butter
• 1 to 2 tablespoons Cajun seasoning, plus more to taste
• 4 cups chicken broth
• 1 cup heavy cream
• 1/2 teaspoon dried thyme
• 1 bay leaf
• Salt and black pepper, to taste
• 2 tablespoons chopped fresh parsley, for serving
• Crusty bread, for serving

Ingredient Notes

Potatoes: Yukon Gold potatoes are the best pick. They are creamy, hold their shape fairly well and mash easily into the broth. Russets also work and break down more, which makes a thicker soup.

Sausage: Look for fully cooked smoked sausage. Andouille is the classic, but any smoked pork or beef sausage with some spice will do. Because it is already cooked, you are only browning it for flavor.

Cajun seasoning: Blends vary a lot in salt and heat. Start with 1 tablespoon, taste after simmering, and add more if you want it hotter. Check the label for salt, since you may need less added salt later.

Cream: Heavy cream gives the richest, smoothest finish. Half-and-half works for a lighter soup, though it is thinner.

How to Make Cajun Potato Soup

Step by Step

1. Prep the vegetables. Peel and cube the potatoes, dice the peppers and onion, and mince the garlic. Keep the potato cubes about the same size so they cook evenly.
2. Brown the sausage. Heat a large Dutch oven or heavy pot over medium-high heat. Add the sausage rounds in a single layer, working in two batches if needed, and cook for 3 to 4 minutes per side until deep brown at the edges. Move them to a plate and leave the fat in the pot.
3. Soften the peppers and onion. If the pot looks dry, add the olive oil or butter. Add the bell peppers and onion with a pinch of salt and cook for 6 to 8 minutes, stirring now and then, until soft and lightly golden. Scrape up any browned bits as they loosen.
4. Bloom the spices. Add the garlic, thyme and 1 tablespoon of the Cajun seasoning. Stir for 30 to 60 seconds until fragrant, which wakes up the flavor of the spices.
5. Add the potatoes and broth. Stir in the potatoes, pour in the chicken broth and add the bay leaf. The liquid should just cover the potatoes. Bring to a boil.
6. Simmer. Reduce the heat to medium-low, cover partly and simmer for 15 to 20 minutes, until a fork slides easily into the potatoes.
7. Thicken the soup. Remove the bay leaf. Press a potato masher into the pot and mash about a quarter of the potatoes against the side, leaving plenty of chunks. Alternatively, ladle 1 1/2 cups of soup into a blender, blend until smooth and stir it back in.
8. Add the cream and sausage. Turn the heat to low. Stir in the cream and most of the browned sausage. Warm gently for 5 minutes without letting it boil.
9. Season. Taste and add salt, black pepper and more Cajun seasoning as needed.
10. Serve. Ladle into bowls, top with the remaining sausage and the chopped parsley, and serve with crusty bread for dipping.

Tips for the Best Cajun Potato Soup

Brown the Sausage Well

Don’t rush this step. Dark, crisp edges on the sausage add a smoky depth that the rest of the pot builds on. Keep the slices in a single layer and leave them alone for a few minutes before flipping so they actually brown instead of steaming.

Cut the Potatoes Evenly

Uneven pieces mean some cubes turn to mush while others are still firm. Aim for 3/4-inch pieces. Smaller cubes cook faster and give a thicker soup; bigger ones stay chunkier.

Mash Instead of Using Flour

Mashing some of the potatoes thickens the soup and keeps the flavor clean. If you want it thicker still, mash a few more. If it gets too thick, thin it with a splash of broth.

Add the Cream Last and Keep It Gentle

High heat can make cream-based soups look grainy or split. Lower the heat before the cream goes in and stop at a gentle steam, not a boil.

What to Serve With Cajun Potato Soup

Crusty bread is the obvious partner, torn into pieces for dunking. Garlic toast, cornbread or warm dinner rolls work just as well. A crisp green salad with a tangy vinaigrette cuts through the creamy richness.

Variations

• Extra spicy: Add 1/4 teaspoon cayenne pepper, a diced jalapeño with the peppers, or a few dashes of hot sauce at the table.
• Add greens: Stir in two big handfuls of chopped kale or spinach for the last 5 minutes of simmering.
• Chicken version: Replace the sausage with 1 lb of diced boneless chicken thighs. Brown them in the pot and add more Cajun seasoning to compensate.

Storage and Reheating

Refrigerator: Cool the soup within two hours and store it in an airtight container for up to 4 days. The potatoes keep absorbing liquid as it sits, so the soup will be thicker the next day.

Reheating: Warm it in a pot over low heat, stirring often, and add a splash of broth or milk to loosen it. Avoid boiling. In the microwave, heat in 60-second bursts and stir between each one.

Freezing: Potatoes can turn soft and grainy after freezing, and cream may separate. For best results, freeze the soup base before adding the cream, then thaw in the refrigerator, reheat and stir in the cream. Store it for up to 2 months.

Frequently Asked Questions

What kind of sausage works best in cajun potato soup?

Smoked andouille is traditional because it is coarse, smoky and spicy. If you can’t find it, use smoked kielbasa, smoked pork sausage or a spicy smoked chicken sausage. Choose a fully cooked sausage so it only needs browning.

How do I make the soup thicker?

Mash more of the potatoes right in the pot, or blend a few ladles and stir them back in. You can also simmer the soup uncovered for 5 to 10 minutes before adding the cream so extra liquid cooks off.

Can I make cajun potato soup in a slow cooker?

Yes. Brown the sausage and soften the peppers and onion on the stove first, then move everything except the cream to the slow cooker with the potatoes and broth. Cook on low for 6 to 7 hours or on high for 3 to 4 hours, then mash some potatoes and stir in the cream at the end.

Is this soup very spicy?

It has a mild to medium heat with 1 tablespoon of Cajun seasoning, but the real level depends on your blend and sausage. For less heat, use a mild sausage and start with a smaller amount of seasoning. For more, add cayenne or hot sauce after tasting.