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4.91 from 11 ratings

Keto Roasted Cauliflower Soup

A low carb, healthy and nourishing roasted cauliflower soup.
Prep Time10 minutes
Cook Time50 minutes
Total Time1 hour
Course: Main Course, Soup
Cuisine: American
Servings: 4
Calories: 166
Author: Natalie

Ingredients

  • 1 head cauliflower florets chopped (about 4 cups)
  • 1 yellow onion chopped
  • 5 cloves of garlic whole
  • 2 tablespoons olive oil
  • kosher salt + pepper
  • 4 cups may need 5 cups chicken stock
  • 1/2 cup heavy cream see Notes for dairy free/Whole30/vegan substitutions
  • finely chopped chives or other favorite herb like parsley, green onions, dill, etc + more black pepper for garnish, optional

Instructions

  • Preheat your oven to 425°F. Line a rimmed baking sheet with parchment paper (for easy cleanup).
  • Spread the cauliflower florets, chopped onion and cloves of garlic in an even layer on the rimmed baking sheet. Drizzle with olive oil, and season with kosher salt + black pepper.
  • Roast for about 45 minutes, until the cauliflower + onion is golden brown and caramelized.
  • Transfer the roasted veggies to your high speed blender, along with 2 cups of bone broth. Blend over medium high speed until smooth, about 60-90 seconds.
  • Pour the pureed cauliflower into your soup pot, over medium heat. Add in the heavy cream, then thin to your desired consistency with bone broth. I usually use 4 cups in total (including the 2 cups I already had in the blender). Allow warm through.
  • Serve warm, topped with chives (or other favorite fresh herbs) and black pepper.
  • Leftovers will keep in an airtight container refrigerated for at least 5 days, or frozen for at least 6 months.
  • See Notes below for more tips, FAQs and substitution options!

Video

Notes

Cauliflower: You could use prechopped cauliflower rather than a whole head!
Dairy Free/Whole30/Vegan: Using heavy cream is completely optional. This soup is still yummy without! For dairy free creaminess, you can use cashew cream, coconut milk or cream in a can, original flavor Nutpods or Silk Dairy Free Heavy Cream. Same amount of all of those.
Reheating: Reheat in the microwave until warm, about 3-5 minutes. Or reheat in a soup pot on the stove over medium heat until warm.
Freezing Instructions: Freeze in a freezer safe airtight container for at least 6 months. Can thaw in the fridge overnight, or reheat straight from frozen. Reheat either in the microwave until warm, about 3-5 minutes if thawed, or 6-10 minutes if frozen. Or reheat on the stove in a pot over medium heat until warm.

Nutrition

Calories: 166 | Total Carbs: 9.8g | Protein: 5.1g | Fat: 12.8g | Fiber: 2.7g | Net Carbs: 7g