Slow Cooker Cajun Potato Soup

Featured in: Homemade Soups & Stews

This hearty Cajun potato soup combines tender diced potatoes, aromatic vegetables, and a blend of smoky, spicy seasonings, all simmered slowly to develop deep, rich flavors. The soup is thickened by mashing some potatoes directly in the pot, creating a creamy texture balanced with chunky vegetable pieces. Finished with milk and cream, the dish offers a comforting warmth enhanced by a touch of cayenne and smoked paprika. Garnished with fresh parsley and green onions, it’s a perfect meal for chilly days. Variations include adding sausage or opting for plant-based ingredients for a vegan option.

Updated on Sun, 23 Nov 2025 12:16:00 GMT
Steaming bowl of Slow Cooker Cajun Potato Soup, garnished with green onions and parsley, ready to eat. Save to Pinterest
Steaming bowl of Slow Cooker Cajun Potato Soup, garnished with green onions and parsley, ready to eat. | honeyprairie.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 become a family favorite for chilly evenings, bringing warmth and bold flavors to our dinner table.

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
  • Broth: 4 cups (1 L), low-sodium chicken or vegetable
  • Whole milk: 1 cup (240 ml), or unsweetened plant-based milk for vegan option
  • Heavy cream: 1/2 cup (120 ml), or coconut cream for dairy-free
  • 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: 1/4 tsp, optional for extra heat
  • Salt: 1 tsp, or to taste
  • Corn kernels: 1 cup (150 g), fresh or frozen, optional
  • Cooked andouille or smoked sausage: 1 cup (125 g), sliced, omit for vegetarian
  • Green onions: 2, sliced for garnish
  • Fresh parsley: chopped 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 to 7 hours or on high for 3 to 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 to 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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| honeyprairie.com

Making this soup always brings back fond memories of sharing warm meals with family on cold nights.

Required Tools

Slow cooker (crockpot), chef's knife, cutting board, potato masher or immersion blender, ladle

Allergen Information

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

Nutritional Information

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

Creamy Slow Cooker Cajun Potato Soup with tender potatoes and vegetables, perfect for a cozy dinner. Save to Pinterest
Creamy Slow Cooker Cajun Potato Soup with tender potatoes and vegetables, perfect for a cozy dinner. | honeyprairie.com

This Cajun Potato Soup is the perfect blend of comfort and spice to brighten any meal.

Questions & Answers

Can this soup be made vegan?

Yes, substitute vegetable broth and use plant-based milk and cream alternatives. Omit sausage or use a plant-based protein.

How do I thicken the soup without flour?

Mash some of the cooked potatoes directly in the slow cooker to naturally thicken the soup and create creaminess.

Is it possible to adjust the spice level?

Absolutely, modify the amount of Cajun seasoning and cayenne pepper to suit your desired heat preference.

What can I use instead of andouille sausage?

You can use smoked sausage or omit it entirely for a vegetarian version; plant-based options also work well.

Can I prepare this without a slow cooker?

Yes, you can simmer the ingredients in a large pot on the stove over low heat until vegetables are tender, stirring occasionally.

What garnishes enhance the flavors?

Fresh sliced green onions and chopped parsley add brightness and a fresh contrast to the rich, spicy broth.

Slow Cooker Cajun Potato Soup

Comforting Cajun-spiced potato and vegetable soup, slow simmered for tender, rich, and creamy flavor.

Prep duration
15 minutes
Cook duration
360 minutes
Overall time needed
375 minutes
Recipe by Honey Prairie Abigail Greene


Skill Level Easy

Cuisine type American Cajun

Makes 6 Number of portions

Diet specifications None specified

What 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 0.5 cup heavy cream or coconut cream

Spices & Seasonings

01 2 tsp Cajun seasoning
02 0.5 tsp smoked paprika
03 0.5 tsp dried thyme
04 0.25 tsp black pepper
05 0.25 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 (omit for vegetarian)
03 2 green onions, sliced (garnish)
04 Chopped fresh parsley (garnish)

How to Make It

Step 01

Combine vegetables and optional ingredients: Add potatoes, onion, celery, carrots, bell pepper, garlic, corn if using, and sausage if using, into the slow cooker.

Step 02

Add liquids and seasonings: Pour in broth and add Cajun seasoning, smoked paprika, dried thyme, black pepper, cayenne pepper if using, and salt; stir to combine.

Step 03

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

Step 04

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

Step 05

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

Step 06

Adjust seasoning: Taste and adjust salt and spices as needed.

Step 07

Serve: Ladle into bowls and garnish with sliced green onions and chopped parsley.

Essential tools

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

Allergy Details

Go through all ingredients to spot potential allergies. If unsure, check with a health expert.
  • Contains dairy; for dairy-free, use plant-based alternatives.
  • May contain gluten if using non-gluten-free sausage; verify product labels.

Nutrition details (per portion)

Details for informational use only — not a substitute for a medical professional.
  • Energy (calories): 285
  • Lipids: 10 g
  • Carbohydrates: 39 g
  • Proteins: 8 g