Slow Cooker Cajun Potato Soup

Featured in: Everyday Bites

This dish features tender diced potatoes, onions, celery, carrots, and bell pepper enhanced with Cajun seasoning, smoked paprika, and thyme. Slow-cooked for hours, the mixture is mashed slightly for texture then enriched with milk and cream. Optional sausage or corn add layers of flavor, with garnishes of green onions and parsley finalizing the hearty, warming bowl. Ideal for cozy dinners and simple to prepare with a slow cooker.

Updated on Sun, 23 Nov 2025 13:51:00 GMT
Creamy slow cooker Cajun potato soup, garnished with green onions, offers a comforting, spicy aroma. Save
Creamy slow cooker Cajun potato soup, garnished with green onions, offers a comforting, spicy aroma. | fryflick.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 Cajun potato soup is a family favorite that I love making on busy days. It warms everyone up and fills the house with amazing aromas.

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.
A steaming bowl of slow cooker Cajun potato soup, perfectly garnished and ready to be enjoyed. Save
A steaming bowl of slow cooker Cajun potato soup, perfectly garnished and ready to be enjoyed. | fryflick.com

Making this soup always brings my family together around the table, sharing stories and enjoying the delicious flavors.

Required Tools

Slow cooker (crockpot), chef’s 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. Omit sausage or use plant-based substitute for vegetarian or vegan versions.

Nutritional Information

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

Imagine the rich color and comforting texture of this flavorful slow cooker Cajun potato soup. Save
Imagine the rich color and comforting texture of this flavorful slow cooker Cajun potato soup. | fryflick.com

This soup is best enjoyed fresh but can be refrigerated for up to 3 days. Reheat gently to preserve flavor and texture.

Recipe Guide

What makes the potatoes tender in this dish?

Slow cooking over several hours allows the diced russet potatoes to soften thoroughly, absorbing spices and broth flavors while maintaining some chunkiness for texture.

Can I substitute the milk and cream?

Yes, plant-based alternatives like almond or coconut milk and cream can be used to accommodate vegan or dairy-free preferences without compromising creaminess.

How spicy is this soup with Cajun seasoning?

The Cajun seasoning provides a balanced warmth with smoky, earthy undertones. Adjust the optional cayenne pepper for more heat if desired.

Is it possible to make this dish vegetarian?

Omitting sausage or using plant-based sausage creates a vegetarian option. Vegetable broth also keeps it plant-friendly.

How should I thicken the soup without flour or cornstarch?

Partially mashing some of the cooked potatoes directly in the pot naturally thickens the soup, giving a creamy texture without additional thickeners.

Slow Cooker Cajun Potato Soup

A hearty blend of potatoes, vegetables, and Cajun spices simmered low and slow for rich flavor.

Prep duration
15 min
Cook duration
360 min
Complete duration
375 min
Created by Olivia Parker


Complexity Easy

Heritage American Cajun

Output 6 Portions

Dietary guidelines 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 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
04 Chopped fresh parsley, for garnish

Method

Phase 01

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

Phase 02

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

Phase 03

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

Phase 04

Partially mash potatoes: Use a potato masher or immersion blender to mash some potatoes inside the slow cooker, preserving chunks for texture.

Phase 05

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

Phase 06

Season to taste and serve: Adjust seasoning if needed, then serve warm garnished with green onions and parsley.

Tools needed

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

Allergy details

Review ingredients carefully for potential allergens and seek professional medical guidance if uncertain.
  • Contains dairy (milk, cream); substitute plant-based for dairy-free versions.
  • Sausage may contain gluten; verify ingredient labels.

Nutrition breakdown (per portion)

Values shown are estimates only - please consult healthcare providers for specific advice.
  • Energy: 285
  • Fats: 10 g
  • Carbohydrates: 39 g
  • Proteins: 8 g