Slow Cooker Cajun Soup

Featured in: Fabulous Weeknight Meals

This slow cooker dish blends tender diced potatoes, aromatic vegetables, and a vibrant mix of Cajun spices to create a rich and hearty soup. The slow simmer allows flavors to deepen, while a gentle mash adds texture. Cream and milk bring a smooth, velvety finish. Optional additions like corn and sausage enhance the savory profile, with plant-based alternatives offering versatility. Garnished with fresh green onions and parsley, it is an ideal comforting meal perfect for chilly days.

Updated on Sun, 23 Nov 2025 08:18:00 GMT
Steaming bowl of Slow Cooker Cajun Potato Soup, thick and creamy with visible vegetables. Save Pin
Steaming bowl of Slow Cooker Cajun Potato Soup, thick and creamy with visible vegetables. | fabulousdishesby.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 slow cooker Cajun potato soup has become a family favorite, especially on chilly evenings when we crave something warm and satisfying.

Ingredients

  • Potatoes: 1.5 lbs (700 g) russet potatoes peeled and diced
  • Onion: 1 medium yellow onion diced
  • Celery: 2 celery stalks diced
  • Carrots: 2 medium carrots diced
  • Red bell pepper: 1 diced
  • Garlic: 3 cloves minced
  • Broth: 4 cups (1 L) low-sodium chicken or vegetable broth
  • Milk: 1 cup (240 ml) whole milk or unsweetened plant-based milk for vegan option
  • Cream: 1/2 cup (120 ml) heavy cream 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 sausage: 1 cup (125 g) andouille or smoked sliced optional omit for vegetarian
  • Green onions: 2 sliced for garnish
  • Parsley: chopped fresh 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
This comforting Slow Cooker Cajun Potato Soup, garnished with green onions, is perfect for chilly nights. Save Pin
This comforting Slow Cooker Cajun Potato Soup, garnished with green onions, is perfect for chilly nights. | fabulousdishesby.com

Making this soup has brought my family closer as we share warm meals and stories during the colder months.

Optional Additions

Add cooked shrimp or chicken for more protein or include corn kernels for extra sweetness and texture.

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

Close-up of hearty Slow Cooker Cajun Potato Soup with tender potatoes and delicious Cajun spices. Save Pin
Close-up of hearty Slow Cooker Cajun Potato Soup with tender potatoes and delicious Cajun spices. | fabulousdishesby.com

This soup is perfect for meal prepping and tastes even better the next day.

Recipe FAQs

How long does the dish cook in a slow cooker?

It simmers for 6–7 hours on low or 3–4 hours on high until the vegetables are tender.

Can I make this dish suitable for a vegan diet?

Yes, by using vegetable broth and substituting dairy with plant-based milk and cream alternatives.

What is the role of mashing some potatoes during cooking?

Mashing some of the potatoes thickens the broth while leaving chunks creates a pleasing texture.

Which spices provide the Cajun flavor?

A blend of Cajun seasoning, smoked paprika, thyme, black pepper, and optional cayenne pepper builds the characteristic spicy and smoky profile.

Can I add protein to this dish?

Yes, adding cooked andouille or smoked sausage enriches the dish, with options to omit for vegetarian preferences.

What garnishes complement this dish?

Sliced green onions and chopped fresh parsley add fresh, bright notes to the final presentation.

Slow Cooker Cajun Soup

A rich blend of potatoes, veggies, and Cajun spices simmered slowly for comforting warmth.

Prep Duration
15 min
Time to cook
360 min
Overall duration
375 min
Posted by Fabulous dishes by Vanessa Collins


Skill level Easy

Cuisine style American Cajun

Servings made 6 Number of servings

Dietary details Vegetarian-friendly

Ingredient list

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 ½ cup heavy cream or coconut cream

Spices & Seasonings

01 2 teaspoons Cajun seasoning
02 ½ teaspoon smoked paprika
03 ½ teaspoon dried thyme
04 ¼ teaspoon black pepper
05 ¼ 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
03 2 green onions, sliced (for garnish)
04 Chopped fresh parsley (for garnish)

Step-by-Step Guide

Instruction 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.

Instruction 02

Add Broth and Spices: Pour in the broth and add Cajun seasoning, smoked paprika, dried thyme, black pepper, cayenne pepper (if using), and salt; stir to blend.

Instruction 03

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

Instruction 04

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

Instruction 05

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

Instruction 06

Adjust Seasonings: Taste and adjust the seasoning as necessary for balance and heat.

Instruction 07

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

Equipment needed

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

Allergy details

Take a moment to check each ingredient for possible allergens. Always reach out to a medical expert if you're unsure.
  • Contains dairy; plant-based substitutions required for dairy-free diets.
  • Sausage may contain gluten; verify labels if gluten-free is necessary.

Nutrition details by serving

These details help guide you, but be sure to consult a healthcare professional when needed.
  • Kcal: 285
  • Lipids: 10 g
  • Carbohydrates: 39 g
  • Protein: 8 g