Spicy Cajun Potato Soup (Printable)

Hearty potato soup with Cajun spices, smoky sausage, and vegetables. Ready in under an hour.

# 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 for extra heat
15 - Salt and black pepper to taste

→ Other

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

# Directions:

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. For extra thickness, mix cornstarch with cold water to make a slurry. Stir into the soup and simmer for 2-3 minutes until thickened.
07 - Taste and adjust seasoning with more Cajun seasoning, salt, or pepper if needed. Ladle soup into bowls and garnish with sliced green onions.

# Expert Tips:

01 -
  • The Cajun spices create layers of warmth without being overwhelmingly spicy
  • Its a one pot meal that feels like something special
02 -
  • Partially mashing the potatoes is the secret to achieving that restaurant style texture without needing heavy cream
  • The soup will continue to thicken as it sits, so thin with extra broth if reheating the next day
03 -
  • Dice your potatoes uniformly so they cook at the same rate
  • Taste your Andouille before adding extra salt since the sausage is already salty