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Creamy loaded potato soup topped with cheddar cheese, crispy bacon, and green onions in a white bowl on marble background

Keto Cauliflower Soup: The Ultimate Low-Carb Comfort Food


  • Author: Jasmine
  • Total Time: 40 minutes
  • Yield: 6 servings 1x

Description

When it comes to comfort food, few dishes rival a steaming bowl of creamy soup. For those following a ketogenic or low-carb lifestyle, traditional potato-based soups can be off-limits due to their high starch content. That’s where keto cauliflower soup comes in. This recipe delivers all the warmth, creaminess, and satisfaction of loaded baked potato soup, but with a fraction of the carbs. Packed with flavor, easy to prepare, and versatile enough for meal prep, this dish deserves a permanent spot in your recipe rotation.


Ingredients

Scale
  • 1 large head cauliflower, cut into florets
  • 6 slices bacon, chopped
  • 4 cups chicken or bone broth
  • 1 cup sour cream
  • 1 ½ cups shredded cheddar or Monterey Jack cheese
  • 1 onion, diced
  • 2 celery stalks, chopped
  • 3 garlic cloves, minced
  • 3 green onions, sliced (for garnish)
  • Salt and pepper to taste
  • Optional: heavy cream, smoked paprika, or jalapeños for flavor variations

Instructions

  1. Cook the bacon: In an Instant Pot or large pot, cook bacon until crisp. Remove and set aside, leaving the rendered fat in the pot.
  2. Sauté the aromatics: Add onion, celery, and garlic to the bacon fat. Cook until softened and fragrant.
  3. Add cauliflower and broth: Stir in the cauliflower florets and pour in the broth. Season with salt and pepper.
  4. Instant Pot: Seal the lid and cook on high pressure for 5 minutes. Allow natural release for 10 minutes.
  5. Stovetop: Bring to a boil, then simmer 25–30 minutes until cauliflower is tender.
  6. Blend: Stir in sour cream and shredded cheese, then blend until smooth using an immersion blender.
  7. Garnish: Top with crispy bacon, extra cheese, and green onions before serving.

Notes

Expert Tips:

  • Use bacon grease for flavor. For a vegetarian option, substitute butter or olive oil.
  • Don’t over-thin the soup; add broth gradually if you prefer a lighter texture.
  • Use sharp cheddar for a bold flavor or Monterey Jack for a milder finish.
  • Meal prep friendly: Freeze individual portions for up to 2 months.
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Category: Soup, Keto, Low-Carb, Comfort Food
  • Cuisine: American

Nutrition

  • Serving Size: 1 bowl
  • Calories: 325
  • Sugar: 3
  • Sodium: 720
  • Fat: 23.9
  • Saturated Fat: 10
  • Carbohydrates: 8
  • Fiber: 2.3
  • Protein: 14
  • Cholesterol: 55