Slow Cooker Cajun Soup

Featured in: Comfort Food Favorites

This flavorful slow cooker dish combines tender russet potatoes, diced vegetables, and a blend of Cajun spices slow-simmered for hours. The mixture is partially mashed to provide a creamy yet chunky texture, then enriched with milk and cream for smoothness. Garnished with fresh green onions and parsley, it offers comforting warmth ideal for weeknight dinners. Options include adding sausage for non-vegetarian preferences or plant-based alternatives for a vegan variation.

Updated on Sat, 22 Nov 2025 08:34:00 GMT
Creamy, steaming Slow Cooker Cajun Potato Soup with herbs, perfect for a cozy, comforting dinner. Save It
Creamy, steaming Slow Cooker Cajun Potato Soup with herbs, perfect for a cozy, comforting dinner. | zetluna.com

A hearty, flavorful soup featuring tender potatoes, vegetables, and Cajun spices, all simmered to perfection in a slow cooker. Perfect for a comforting weeknight meal.

I love making this soup on busy days because it fills the house with amazing aromas and tastes even better the next day.

Ingredients

  • Vegetables: 1.5 lbs (700 g) russet potatoes peeled and diced, 1 medium yellow onion diced, 2 celery stalks diced, 2 medium carrots diced, 1 red bell pepper diced, 3 cloves garlic minced
  • Liquids: 4 cups (1 L) low-sodium chicken or vegetable broth, 1 cup (240 ml) whole milk (or unsweetened plant-based milk for vegan option), 1/2 cup (120 ml) heavy cream (or coconut cream for dairy-free)
  • Spices & Seasonings: 2 tsp Cajun seasoning (store-bought or homemade), 1/2 tsp smoked paprika, 1/2 tsp dried thyme, 1/4 tsp black pepper, 1/4 tsp cayenne pepper (optional for extra heat), 1 tsp salt or to taste
  • Optional Additions: 1 cup (150 g) corn kernels (fresh or frozen), 1 cup (125 g) cooked andouille sausage or smoked sausage sliced (omit for vegetarian), 2 green onions sliced (for garnish), Chopped fresh parsley (for garnish)

Instructions

Step 1:
Add the potatoes, onion, celery, carrots, bell pepper, garlic, corn (if using), and sausage (if using) to the slow cooker.
Step 2:
Pour in the broth and add the Cajun seasoning, smoked paprika, dried thyme, black pepper, cayenne (if using), and salt. Stir to combine.
Step 3:
Cover and cook on low for 6&7 hours or on high for 3&4 hours until potatoes and vegetables are tender.
Step 4:
Using a potato masher or immersion blender, mash some of the potatoes directly in the slow cooker to thicken the soup, leaving some chunks for texture.
Step 5:
Stir in the milk and cream, then cook uncovered on high for an additional 20&30 minutes until heated through.
Step 6:
Taste and adjust seasoning as needed.
Step 7:
Serve hot, garnished with green onions and parsley.
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This soup has been a family favorite for years, bringing everyone together around the dinner table on chilly nights.

Required Tools

Slow cooker (crockpot), Chefs knife, Cutting board, Potato masher or immersion blender, Ladle

Allergen Information

Contains dairy (milk, cream) use plant-based alternatives for dairy-free options. Contains possible gluten if sausage is not gluten-free check labels.

Nutritional Information

Per serving: Calories 285, Total Fat 10 g, Carbohydrates 39 g, Protein 8 g

A bowl of flavorful Slow Cooker Cajun Potato Soup, chunky with vegetables and topped with fresh green onions. Save It
A bowl of flavorful Slow Cooker Cajun Potato Soup, chunky with vegetables and topped with fresh green onions. | zetluna.com

This soup is simple yet satisfying and easily adaptable for various dietary needs.

Common Questions About Recipes

Can I make this dish vegan?

Yes, by using vegetable broth and substituting dairy milk and cream with plant-based alternatives, you can enjoy a vegan version.

What can I use instead of sausage?

For a vegetarian or vegan option, omit the sausage or replace it with plant-based alternatives or extra vegetables.

How do I thicken the dish without flour or starches?

Partially mashing some of the potatoes in the slow cooker creates a naturally thick and creamy texture.

Can I adjust the spice level?

Yes, modify the Cajun seasoning and cayenne pepper amounts to suit your preferred heat intensity.

What tools are needed to prepare this dish?

A slow cooker, chef’s knife, cutting board, and potato masher or immersion blender are required for preparation.

Slow Cooker Cajun Soup

Hearty soup blending potatoes, vegetables, and Cajun spices slow-cooked to rich perfection.

Prep Time
15 mins
Time to Cook
360 mins
Overall Time
375 mins
Authored by Clara


Skill Level Required Easy

Cuisine Type American

Recipe Output 6 Number of Portions

Dietary Needs None specified

The Ingredients You'll Need

Vegetables

01 1.5 lbs russet potatoes, peeled and diced
02 1 medium yellow onion, diced
03 2 celery stalks, diced
04 2 medium carrots, diced
05 1 red bell pepper, diced
06 3 cloves garlic, minced

Liquids

01 4 cups low-sodium chicken or vegetable broth
02 1 cup whole milk or unsweetened plant-based milk
03 1/2 cup heavy cream or coconut cream

Spices & Seasonings

01 2 tsp Cajun seasoning
02 1/2 tsp smoked paprika
03 1/2 tsp dried thyme
04 1/4 tsp black pepper
05 1/4 tsp cayenne pepper (optional)
06 1 tsp salt, or to taste

Optional Additions

01 1 cup corn kernels, fresh or frozen
02 1 cup cooked andouille or smoked sausage, sliced
03 2 green onions, sliced for garnish
04 Chopped fresh parsley for garnish

Step-by-Step Instructions

Step 01

Combine vegetables and proteins: Place potatoes, onion, celery, carrots, bell pepper, garlic, corn (if desired), and sausage (if using) into the slow cooker.

Step 02

Add liquids and seasonings: Pour broth over the ingredients, then add Cajun seasoning, smoked paprika, dried thyme, black pepper, cayenne pepper (if using), and salt. Stir thoroughly to combine.

Step 03

Slow cook: Cover and cook on low for 6 to 7 hours or on high for 3 to 4 hours, until potatoes and vegetables become tender.

Step 04

Thicken soup: Use a potato masher or immersion blender to mash part of the potatoes in the slow cooker, retaining some chunks for texture.

Step 05

Incorporate dairy and heat through: Stir in milk and cream, then cook uncovered on high for an additional 20 to 30 minutes until thoroughly heated.

Step 06

Season to taste: Adjust seasoning as needed, ensuring balanced flavor.

Step 07

Serve: Ladle soup into bowls and garnish with green onions and parsley before serving warm.

Tools You'll Need

  • Slow cooker
  • Chef's knife
  • Cutting board
  • Potato masher or immersion blender
  • Ladle

Allergy Information

Review each ingredient to identify allergens and consult an expert if needed.
  • Contains dairy; use plant-based milk and cream for dairy-free option.
  • Sausage may contain gluten; verify label for gluten-free status.

Nutritional Facts (Per Serving)

Keep in mind these details are for general guidance and shouldn't replace professional advice.
  • Caloric Content: 285
  • Fats: 10 grams
  • Carbohydrates: 39 grams
  • Proteins: 8 grams