Slow Cooker Cajun Soup

Featured in: Slow & Low Grill

This slow cooker dish melds tender potatoes and fresh vegetables with spicy Cajun seasoning to create a rich, comforting bowl. Its long, slow simmer enhances flavors and texture, offering a warm meal full of depth. Optional additions like corn and sausage introduce delightful variety, while dairy or plant-based milks add smoothness. Garnished with green onions and parsley, it suits varied preferences and provides a cozy option for busy days.

Updated on Sun, 23 Nov 2025 10:27:00 GMT
Slow Cooker Cajun Potato Soup, creamy and thick, garnished with green onions and parsley. Save
Slow Cooker Cajun Potato Soup, creamy and thick, garnished with green onions and parsley. | bitegrill.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.

This recipe has been a go-to for cozy dinners throughout the colder months. I love how the slow cooker brings out the depth of flavors with minimal effort.

Ingredients

  • Russet potatoes: 1.5 lbs (700 g), peeled and diced
  • Yellow onion: 1 medium, diced
  • Celery stalks: 2, diced
  • Carrots: 2 medium, diced
  • Red bell pepper: 1, diced
  • Garlic: 3 cloves, minced
  • Low-sodium chicken or vegetable broth: 4 cups (1 L)
  • Whole milk or unsweetened plant-based milk: 1 cup (240 ml)
  • Heavy cream or coconut cream: 1/2 cup (120 ml)
  • Cajun seasoning: 2 tsp (store-bought or homemade)
  • Smoked paprika: 1/2 tsp
  • Dried thyme: 1/2 tsp
  • Black pepper: 1/4 tsp
  • Cayenne pepper (optional): 1/4 tsp
  • Salt: 1 tsp or to taste
  • Corn kernels (optional): 1 cup (150 g), fresh or frozen
  • Cooked andouille or smoked sausage (optional): 1 cup (125 g), sliced
  • Green onions (for garnish): 2, sliced
  • Chopped fresh parsley (for garnish): as desired

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.
This comforting bowl of Slow Cooker Cajun Potato Soup offers a delightful blend of flavors and textures. Save
This comforting bowl of Slow Cooker Cajun Potato Soup offers a delightful blend of flavors and textures. | bitegrill.com

This recipe has become a family favorite, perfect for sharing warm meals together.

Required Tools

Slow cooker (crockpot), chefs knife, cutting board, potato masher or immersion blender, ladle

Allergen Information

Contains dairy (milk, cream) for dairy-free use plant-based alternatives. Contains possible gluten if sausage is not gluten-free—check labels. For vegetarian or vegan version omit sausage or use plant-based substitute.

Nutritional Information

Calories 285 Total Fat 10 g Carbohydrates 39 g Protein 8 g per serving

Enjoy a steaming bowl of Slow Cooker Cajun Potato Soup, perfect with crusty bread, ready to savor. Save
Enjoy a steaming bowl of Slow Cooker Cajun Potato Soup, perfect with crusty bread, ready to savor. | bitegrill.com

This soup is a deliciously comforting dish that’s easy to customize and perfect for any night.

Recipe FAQ

Can I make this soup vegan?

Yes, use vegetable broth and plant-based milk or cream substitutes, and omit sausage for a vegan-friendly version.

How do I adjust the spice level?

Control heat by varying the amount of Cajun seasoning and cayenne pepper, adding them gradually to suit taste.

What’s the best way to thicken the soup?

Mash some of the potatoes in the slow cooker after cooking to create a thicker, creamier texture while keeping some chunks intact.

Can I use fresh or frozen corn?

Both fresh and frozen corn kernels work well; add them during cooking for a sweet, crunchy element.

Is it possible to prepare this soup without a slow cooker?

Yes, simmer the ingredients gently on the stove until vegetables are tender, adjusting time to achieve similar softness and flavor.

Slow Cooker Cajun Soup

Hearty Cajun potato and vegetable soup slow simmered to rich, comforting flavors.

Prep duration
15 min
Cook duration
360 min
Complete duration
375 min
Created by Ethan Walker


Skill Level Easy

Heritage American Cajun

Output 6 Portions

Dietary considerations Meat-Free

Components

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

Optional Additions

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

Method

Phase 01

Combine main ingredients: Place potatoes, onion, celery, carrots, bell pepper, garlic, corn (if used), and sausage (if used) into the slow cooker.

Phase 02

Add liquids and seasonings: Pour in broth and add Cajun seasoning, smoked paprika, thyme, black pepper, cayenne (if desired), and salt. Stir thoroughly to blend.

Phase 03

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

Phase 04

Thicken soup: Mash some potatoes in the cooker using a potato masher or immersion blender, leaving chunks for texture.

Phase 05

Incorporate dairy or alternatives: Stir in milk and cream, then cook uncovered on high for 20 to 30 minutes until heated through.

Phase 06

Adjust seasoning: Taste and adjust seasonings as necessary to preferred flavor.

Phase 07

Serve garnished: Serve hot with sliced green onions and chopped parsley as garnish.

Tools needed

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

Allergy details

Review each ingredient for potential allergens and consult with healthcare providers if you're uncertain about sensitivities.
  • Contains dairy; plant-based substitutions recommended for dairy-free diets.
  • May contain gluten depending on sausage; verify labels accordingly.

Nutritional information (each portion)

These values are provided as estimates only and shouldn't replace professional medical guidance.
  • Energy: 285
  • Fats: 10 g
  • Carbohydrates: 39 g
  • Proteins: 8 g