Spicy Cajun Potato Soup (Printable)

Hearty potato soup with Cajun spices, smoky sausage, and fresh vegetables in a creamy broth.

# What You'll Need:

→ Vegetables

01 - 2 lbs russet potatoes, peeled and diced
02 - 1 large onion, diced
03 - 2 celery stalks, diced
04 - 1 large carrot, diced
05 - 3 cloves garlic, minced
06 - 1 red bell pepper, diced
07 - 2 green onions, sliced for garnish

→ Meats

08 - 8 oz Andouille sausage, sliced

→ Liquids

09 - 4 cups chicken broth
10 - 1 cup whole milk

→ Spices & Herbs

11 - 1 1/2 tsp Cajun seasoning, plus more to taste
12 - 1/2 tsp smoked paprika
13 - 1/2 tsp dried thyme
14 - 1/4 tsp cayenne pepper, optional
15 - Salt and black pepper to taste

→ Other

16 - 2 tbsp olive oil
17 - 2 tbsp unsalted butter
18 - 2 tbsp cornstarch, optional
19 - 2 tbsp cold water, if using cornstarch

# How to Make It:

01 - Heat olive oil and butter in a large pot over medium heat. Add sliced Andouille sausage and cook until browned, about 4–5 minutes. Remove sausage and set aside.
02 - In the same pot, add onion, celery, carrot, bell pepper, and garlic. Sauté for 5–6 minutes until vegetables are soft.
03 - Stir in Cajun seasoning, smoked paprika, thyme, cayenne if using, and a pinch of salt and black pepper. Cook for 1 minute to toast spices.
04 - Add diced potatoes and chicken broth. Bring to a boil, then reduce heat to a simmer. Cover and cook for 15–20 minutes, until potatoes are very tender.
05 - Using a potato masher or immersion blender, partially mash some of the potatoes in the pot to thicken the soup, leaving some chunks for texture.
06 - Return sausage to the pot. Stir in the milk and simmer for 5–10 minutes longer.
07 - For extra thickness, mix cornstarch with cold water to make a slurry. Stir into the soup and simmer for 2–3 minutes until thickened.
08 - Taste and adjust seasoning with more Cajun seasoning, salt, or pepper if needed. Ladle soup into bowls and garnish with sliced green onions.

# Expert Suggestions:

01 -
  • The smoky Andouille sausage infuses every bite with incredible depth that you just cant get from regular potatoes alone
  • That Cajun spice blend creates layers of heat that warm you from the inside out without overwhelming your palate
  • Despite tasting like it simmered all day, this comes together in under an hour for easy weeknight comfort
02 -
  • I once forgot to brown the sausage separately and just threw everything in together, and the soup was noticeably less flavorful because that crucial rendered fat never happened
  • Dont rush the vegetable sauté step because raw crunchy onions and bell peppers completely ruin the creamy comfort vibe
  • The soup thickens considerably as it cools, so what seems too thin in the pot will be perfect in the bowl
03 -
  • Cut your potatoes into evenly sized cubes so they all finish cooking at the same time and you dont end up with some mushy and some underdone pieces
  • If your soup is too spicy, a splash of heavy cream or an extra dollop of sour cream on top helps tame the heat

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