Creamy broccoli soup thickened with cauliflower instead of flour
Keto Broccoli Cheddar Soup
Prep Time
15 min
Cook Time
25 min
Total Time
40 min
Servings
6
6 servings
Difficulty
Easy
Cost
Budget
$
Keto Broccoli Cheddar Soup
Creamy broccoli soup thickened with cauliflower instead of flour
A low-carb broccoli cheddar soup that gets its body from cauliflower and cheese rather than flour, so it stays rich without feeling heavy.
15m
Prep Time
25m
Cook Time
40m
Total Time
6
Servings
Easy
Difficulty
Budget $
Cost
Sarah Chen
(Updated )
A good keto soup cannot just be diet food in disguise; it has to deliver the same comfort as the classic version. Cauliflower blends into the broth here so the texture stays lush while the broccoli and cheddar still lead the flavor.
Ingredients
- 2 tbsp butter
- 1 onion, diced
- 3 cups cauliflower florets
- 4 cups chicken or vegetable stock
- 4 cups broccoli florets
- 1 cup heavy cream
- 2 cups shredded sharp cheddar
Instructions
- 1
Cook the onion in the butter until soft.
- 2
Add the cauliflower and stock and simmer until the cauliflower is very tender.
- 3
Blend the soup until mostly smooth, then return it to the pot.
- 4
Add the broccoli and simmer until tender-crisp, then stir in the cream and cheddar until melted.
- 5
Season and serve hot.
Serving Suggestions
Ways to Serve This Dish
Serve with a fresh side salad for a balanced meal
Pair with your favorite grain or bread on the side
Garnish with fresh herbs for a beautiful presentation
Substitutions
Heavy creamHalf-and-half
The soup will be a bit lighter and slightly less keto-focused
CheddarGruyere
Gruyere gives the soup a more French onion-style depth
Tips & Storage
Pro Tips
Do not boil the soup after adding the cheese or it can turn grainy.
Blend only part of the soup if you want a chunkier texture.
Storage
Refrigerate for up to 4 days.
Reheating
Reheat gently over low heat, stirring often.
Nutrition Facts
Per serving (1 bowl) · 6 servings
Calories320
LowModerateHigh
A moderate-calorie serving · based on a 2,000 cal daily diet
Protein13g
Carbohydrates10g
Fat25g
Fiber3g
Sugar4g
Sodium640mg
Nutritional values are approximate and may vary based on specific ingredients and preparation methods.
Frequently Asked Questions
- Can I make it vegetarian?
- Yes. Use vegetable stock and keep the rest of the recipe the same.
- Is the cauliflower noticeable?
- Not strongly. It mostly works as texture support for the broccoli and cheddar.
Explore More
About Sarah Chen
Sarah Chen is a professional recipe developer and food editor with over a decade of experience in test kitchens and food media. She trained at the Culinary Institute of America before spending six years developing and testing recipes for national food publications, where she honed her ability to translate restaurant techniques into approachable home cooking. At RecipePool, Sarah leads recipe development, ensuring every dish is tested at least three times for clarity, accuracy, and genuine deliciousness. When she is not in the kitchen, she is browsing farmers markets and collecting vintage cookbooks.
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