Cauliflower Potato Soup

Melissa

By: Melissa

Updated: January 7, 2026

Cauliflower potato soup is hearty and delicious, plus its perfect for cold weather or anytime you want a comforting meal. Made with tender potatoes, flavorful cauliflower, and a blend of savory spices, this soup is healthy and satisfying. Top it off with bacon bits and fresh chives for a more traditional potato soup twist. 

A bowl of cauliflower potato soup garnished with bacon and green onions.

Why you’ll love this cauliflower potato soup

This soup is a great option for meal prep and can be frozen easily. You can customized this soup to your liking by adding various toppings, such as bacon bits, dairy free cheese shreds, vegan sour cream or different fresh herbs.

More dairy free soup recipes: lemon orzo soup / apple parsnip soup / garbanzo bean soup / creamy chicken and wild rice soup

Close up of bacon bits and green onions in a creamy potato soup.

Ingredients & substitutions

  • Dairy free milk – Any unsweetened, unflavored dairy free milk will work for this recipe.

Making changes to a recipe can result in recipe failure. Any substitutions listed below are simple changes that I believe will work in this recipe, but results are not guaranteed.

Creamy potato soup on a spoon with a bowl of the soup in the background.

How to make this cauliflower potato soup

Boil veggies and potatoes. Combine all ingredients except milk and flour into a large stock pot or dutch oven. Cook until vegetables are soft, or about 25-30 minutes.

Make a slurry. Whisk together dairy free milk and flour together in a mixing bowl. Add to pot and continue to cook until soup has thickened, about 5 minutes.

Puree the soup. Remove soup from heat and blend with an immersion blender. Alternatively, you can transfer the soup to a food processor or blender. Process until smooth.

A bowl of cauliflower potato soup with bacon and green onions garnishing the bowl.

Everything you need to know about this cauliflower and potato soup

How do you thicken cauliflower soup?

There are a couple different options that can be used to thicken soups. For this recipe, we are using a dairy free milk + flour slurry to thicken the soup. A cornstarch slurry could be used alternatively, using 2 tablespoons of cornstarch whisked into the dairy free milk.

Overhead shot of bowls of creamy soup.

More cauliflower recipes you will love

Cauliflower Potato Soup

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Prep Time 5 minutes
Cook Time 30 minutes
Total Time 35 minutes
Servings 6
Cauliflower potato soup is hearty and delicious, plus its perfect for cold weather or anytime you want a comforting meal. Made with tender potatoes, flavorful cauliflower, and a blend of savory spices, this soup is healthy and satisfying. Top it off with bacon bits and fresh chives for a more traditional potato soup twist. 

Ingredients

  • 1 pound russet potatoes - peeled and cubed
  • 2 pounds cauliflower - stems removed and chopped
  • 1 sweet onion - chopped
  • 2 stalks celery - chopped
  • 4 green onions
  • 5 garlic cloves - peeled and smashed
  • 3 14.5- ounce cans reduced-sodium chicken broth
  • 1 teaspoon paprika
  • ½ teaspoon dried thyme
  • ¼ – ½ teaspoon coarse salt
  • 2 cups dairy free milk - plain, unsweetened
  • ¼ cup all-purpose flour
  • Toppings: bacon bits, shredded DF cheese, fresh chives - optional

Instructions

  • In a large stockpot, combine all ingredients except milk and flour. Cover and bring to a boil. Allow soup to cook until vegetables are soft – about 25 – 30 minutes.
  • In a bowl, whisk together milk and flour. Add to pot. Continue cooking until soup has thickened – about 5 minutes.
  • Remove from heat and blend with an immersion blender (or transfer soup to a food processor or blender). Process until smooth.

Video

Notes

  • Any kind of alternative milk can be used in this recipe. If using coconut milk, opt for the refrigerated kind instead of canned for the right consistency. Regular dairy milk can be used as well if it’s safe for you to consume.
  • Toppings are optional. Not all toppings listed are vegan. Just suggested dairy free options.
  • Vegetable broth must be used to make this recipe vegan.

Nutrition

Calories: 165kcal Carbohydrates: 32g Protein: 8g Fat: 2g Sodium: 215mg Fiber: 5g Sugar: 7g Vitamin C: 82mg

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