If there’s one thing that can make a chilly evening instantly better, it’s a big, cozy bowl of soup. And if that soup happens to be creamy, cheesy, and low-carb? Well, that’s a win in my book! This Keto Broccoli Cheese Soup is one of those comforting recipes that tastes like it took hours to make—but it’s actually quick, easy, and totally guilt-free.
I first whipped up a version of this soup after craving something rich but not heavy on carbs. Turns out, it became one of my go-to keto recipes. Even non-keto friends have asked for seconds (and the recipe). So, grab your favorite pot and let’s make something deliciously cheesy together.
Why You’ll Love This Soup
- It’s creamy, cheesy, and packed with flavor.
- You only need one pot—fewer dishes, more time to relax.
- It fits into keto, low-carb, and gluten-free lifestyles.
- Ready in under 30 minutes!
- It reheats beautifully for lunch the next day.
Ingredients You’ll Need
Here’s what you’ll need to create this dreamy keto broccoli cheddar soup:
- 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 for a vegetarian version)
- 1 cup heavy cream
- 2 cups shredded sharp cheddar cheese (plus extra for topping)
- ½ teaspoon mustard powder (optional, but adds depth)
- ½ teaspoon smoked paprika
- Salt and pepper, to taste
- ¼ teaspoon xanthan gum (optional, for thicker texture)
Note: If you prefer a lighter option, you can swap heavy cream with half-and-half, but the soup will be slightly less rich.
How to Make Keto Broccoli Cheese Soup
This soup comes together faster than you’d think. Here’s how I make it:
- Sauté the aromatics.
In a large pot, melt the butter over medium heat. Add the chopped onion and sauté until it’s translucent and fragrant. Toss in the garlic and cook for about 30 seconds more—just until it releases that irresistible aroma. - Add the broccoli and broth.
Pour in the chicken broth and toss in the broccoli florets. Bring it to a simmer and cook until the broccoli softens, about 8–10 minutes. - Blend for creaminess.
You can use an immersion blender right in the pot or carefully transfer a portion to a blender. Blend until smooth (or leave a few chunks if you like texture). - Add the creamy base.
Lower the heat and stir in the heavy cream, mustard powder, and smoked paprika. Let it warm through—don’t let it boil, or the dairy may curdle. - Melt in the cheese.
Gradually add the shredded cheddar, stirring constantly until it melts into a silky, creamy mixture. Taste and season with salt and pepper. - Thicken (optional).
If you prefer a thicker consistency, sprinkle in a pinch of xanthan gum and stir for another minute or two. - Serve warm.
Ladle into bowls, top with extra cheese, and maybe a sprinkle of paprika for color.
That’s it—your easy keto broccoli cheese soup is ready to serve!
Crockpot Method (Hands-Off Option)
If you prefer to let your slow cooker do the work, this recipe works beautifully in a crockpot too:
- Add the butter, onions, garlic, broccoli, broth, mustard powder, and smoked paprika to the crockpot.
- Cook on low for 4 hours or high for 2 hours until the broccoli softens.
- Stir in the heavy cream and shredded cheese just before serving. Let the cheese melt completely before serving.
Simple, cozy, and perfect for busy weeknights!
Tips & Variations
- Add protein: Toss in shredded chicken, diced ham, or crispy bacon for a heartier version.
- Different cheese: Sharp cheddar is classic, but try a mix of Monterey Jack, Colby, or Gouda for extra creaminess.
- Vegetarian option: Use vegetable broth and skip the meat add-ins.
- Extra texture: Stir in a handful of chopped steamed broccoli at the end for a chunky bite.
Storage & Reheating
This soup stores like a dream. Let it cool completely, then refrigerate it in an airtight container for up to 4 days.
When reheating, warm it slowly on the stovetop over low heat. Add a splash of broth or cream if it thickens too much. Avoid microwaving it on high—it can cause the cheese to separate.
You can also freeze it for up to 2 months, but thaw overnight before reheating for best results.
Nutritional Info (Approximate per serving)
- Calories: 320
- Fat: 28g
- Carbs: 6g (Net: 4g)
- Protein: 12g
Nutrition will vary based on ingredients and serving size, but it’s perfect for those following a ketogenic or low-carb diet.
Serving Suggestions
Pair this cheesy broccoli soup with a crisp salad, almond flour biscuits, or roasted veggies. I sometimes enjoy it with a sprinkle of crushed red pepper or a drizzle of olive oil for a little kick.
And honestly? It’s pretty fantastic on its own with a cozy blanket and a good show playing in the background.
Keto Broccoli Cheese Soup
Ingredients
Method
- In a large pot, melt the butter over medium heat. Add the chopped onion and cook until soft and fragrant.
- Stir in the minced garlic and cook for about 30 seconds, just until it smells amazing.
- 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.
- Use an immersion blender to puree the soup right in the pot, or blend part of it for a chunkier texture.
- Lower the heat and stir in the heavy cream, mustard powder, and smoked paprika. Don’t let it boil — just heat it through gently.
- Slowly add shredded cheddar cheese, stirring until it melts completely into a smooth, creamy soup.
- Taste and add salt and pepper. If you like it thicker, sprinkle in a bit of xanthan gum and stir for another minute.
- 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.
FAQs
1. Can I make this without heavy cream?
Yes! You can use half-and-half or even unsweetened coconut cream for a dairy-light option. It won’t be as thick, but still creamy.
2. My soup is too thin—how can I fix it?
Add a pinch of xanthan gum or let it simmer uncovered for a few minutes to reduce and thicken naturally.
3. Can I use frozen broccoli?
Absolutely! Just thaw and drain it first to avoid watering down your soup.
4. Is this soup freezer-friendly?
Yes, but for best texture, freeze before adding cheese. Reheat and melt the cheese in when serving.
5. What makes this soup keto-friendly?
It’s low in carbs, high in healthy fats, and packed with fiber from broccoli. No flour or starches needed!
A Sweet Note from My Kitchen
Cooking keto dishes doesn’t mean giving up flavor or comfort. This Keto Broccoli Cheese Soup proves that healthy and indulgent can happily coexist in one creamy bowl. Whether you’re watching carbs or just craving something warm and satisfying, this soup always hits the spot.
Next time you’re craving comfort, skip the store-bought version—grab your pot and make this from scratch. You’ll taste the difference with every cheesy spoonful.
Let’s make something sweet (and savory!) together.
