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Keto Broccoli Cheese Soup

This creamy Keto Broccoli Cheese Soup is rich, cheesy, and low in carbs. It’s quick to make, full of flavor, and perfect for cozy weeknights.
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Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings: 4 servings
Course: Soup
Cuisine: American comfort food
Calories: 320
Ingredients Method Notes

Ingredients
  

  • 4 cups broccoli florets fresh or frozen
  • 2 tablespoons butter
  • 1 small onion finely chopped
  • 2 cloves garlic minced
  • 2 cups chicken broth or vegetable broth
  • 1 cup heavy cream
  • 2 cups shredded sharp cheddar cheese plus extra for topping
  • ½ teaspoon mustard powder
  • ½ teaspoon smoked paprika
  • Salt and pepper to taste
  • ¼ teaspoon xanthan gum optional, for thickening

Method
 

Melt the butter:
  1. In a large pot, melt the butter over medium heat. Add the chopped onion and cook until soft and fragrant.
Add garlic:
  1. Stir in the minced garlic and cook for about 30 seconds, just until it smells amazing.
Add broccoli and broth:
  1. Pour in the chicken broth and toss in the broccoli florets. Bring to a gentle simmer and cook for 8–10 minutes, until the broccoli is tender.
Blend the soup:
  1. Use an immersion blender to puree the soup right in the pot, or blend part of it for a chunkier texture.
Add cream and seasoning:
  1. Lower the heat and stir in the heavy cream, mustard powder, and smoked paprika. Don’t let it boil — just heat it through gently.
Add the cheese:
  1. Slowly add shredded cheddar cheese, stirring until it melts completely into a smooth, creamy soup.
Adjust and thicken:
  1. Taste and add salt and pepper. If you like it thicker, sprinkle in a bit of xanthan gum and stir for another minute.
Serve:
  1. Pour into bowls and top with extra cheese and a sprinkle of paprika. Serve warm and enjoy!

Notes

  • You can use half-and-half instead of heavy cream for a lighter version.
  • Frozen broccoli works just fine — just thaw it before cooking.
  • Avoid boiling after adding cheese or cream; it can make the soup grainy.
  • Great for meal prep — stores well for up to 4 days in the fridge.