Keto Broccoli Cheddar Soup

Section: Satisfying Main Dishes for Every Occasion

This comforting dish features tender broccoli simmered in a savory broth infused with garlic, carrot, and warming spices like smoked paprika and cayenne. Cream cheese and sharp cheddar melt into the broth, creating a velvety texture and rich flavor. The balance of creamy cheese and fresh broccoli delivers a hearty, satisfying experience perfect for cozy meals.

The gentle simmer softens the vegetables and melds the spices, while the finishing cheese adds depth and silkiness. Simple seasoning with salt and pepper highlights the natural flavors, making it a nourishing option rich in freshness and warmth.

Luna chef wearing a white shirt.
Published By Luna
Updated as of Sun, 09 Nov 2025 22:28:27 GMT
A bowl of soup with broccoli and carrots. Bookmark
A bowl of soup with broccoli and carrots. | foodbymary.com

Broccoli cheddar soup makes sneaking in vegetables so much easier with its creamy, cheesy richness that feels like a treat instead of a chore. This keto-friendly version keeps it low-carb without skimping on comfort or flavor, making it perfect for chilly evenings or anytime you want warm nourishment without the guilt.

I first made this soup on a cold night when I needed something cozy and quick. Now it’s my go-to when I want a comforting bowl that my whole family enjoys, even the picky eaters.

Ingredients

  • Unsalted butter: melts smoothly to create a savory base and helps marry the spices
  • Large carrot: adds subtle sweetness and texture choose firm, bright carrots for best flavor
  • Garlic cloves: give the soup aromatic warmth fresh is best but you can substitute with pre-minced in a pinch
  • Smoked paprika: offers a gentle smoky note that complements cheddar Spanish smoked paprika works nicely if you can find it
  • Ground mustard: brings a mellow tang that enhances depth
  • Onion powder: adds savory richness without the texture of fresh onions, great for smoothness
  • Cayenne pepper: provides a hint of heat to balance the cheese without overpowering
  • Kosher salt: ensures clean, even seasoning
  • Freshly ground black pepper: adds a touch of sharpness and complexity
  • Low-sodium chicken stock: forms the flavorful liquid base homemade or high quality store-bought is ideal
  • Small broccoli florets: cook quickly and maintain pleasant bite pick bright green, firm florets
  • Cream cheese: contributes velvety creaminess and richness
  • Freshly grated sharp cheddar: melts into the soup for that signature tangy cheese flavor grate your own for best melt and taste

Step-by-Step Instructions

Sauté the Aromatics:
In a medium saucepan, melt the butter over medium heat to gently warm without browning. Add the carrot cut into matchsticks and minced garlic. Cook while stirring frequently for about two minutes until the garlic is fragrant and the carrots start to soften. This step builds the flavor base and the sweetness of the carrot balances the sharp cheese.
Add the Spices and Stock:
Stir in smoked paprika, ground mustard, onion powder, and a pinch of cayenne pepper into the butter and vegetable mixture. Pour in the low-sodium chicken stock slowly and raise the heat to bring it to a boil. Add kosher salt and freshly ground black pepper to taste. Boiling now blends the spices and releases their aromas into the soup.
Simmer the Broccoli:
Add the small broccoli florets to the boiling broth and lower to a simmer. Cook gently for about three to five minutes until the broccoli is very tender but still bright in color. This short simmer ensures the broccoli keeps some bite without turning mushy.
Melt in the Cheese:
Reduce heat to low and stir in the cream cheese and freshly grated sharp cheddar gradually. Continue stirring until all the cheese is melted completely into the soup, creating a thick, velvety broth. Taste and adjust seasoning with salt and pepper if needed.
Serve Warm:
Ladle the soup into bowls and serve immediately while hot. It pairs well with a sprinkling of extra cheddar or a crisp side salad for a light, satiating meal.
A bowl of soup with broccoli and cheese. Bookmark
A bowl of soup with broccoli and cheese. | foodbymary.com

I love the creamy tang the cream cheese lends to this soup. It makes the texture unbelievably smooth, like a warm hug in a bowl. Once I served this during a family dinner and even the kids, who usually avoid anything green, asked for seconds.

Storage Tips

Refrigerate leftovers in an airtight container and consume within three days. Reheat gently on low heat to avoid cheese separating. This soup also freezes well—thaw slowly in the fridge overnight and warm on the stove with a splash of broth if it thickens too much.

Ingredient Substitutions

Butter can be swapped for olive oil to lighten the dairy load though it changes the flavor slightly. If you want a vegetarian version, use vegetable stock instead of chicken stock. For dairy-free, omit cream cheese and cheddar and try blending in soaked cashews or nutritional yeast for creaminess and cheesiness.

Serving Suggestions

Serve with crunchy keto-friendly bread or a simple leafy green salad for contrast. Garnish with chopped fresh chives or crispy bacon bits to add texture and extra flavor layers. It also makes a great starter before a heartier dinner.

Cultural Context

Broccoli cheddar soup is a classic American comfort food originally popularized in diners and casual eateries. This keto twist honors that tradition while adapting it for modern dietary preferences, highlighting how versatile and inclusive recipes can evolve without losing nostalgia.

Pro Tips

  • Toast the spices briefly in butter before adding stock to deepen their aroma and flavor.
  • Use freshly grated cheddar rather than pre-shredded to prevent clumping and ensure smooth melt.
  • Don’t overcook broccoli to keep some texture and vibrant color just tender is perfect.

Common Recipe Questions

→ What gives the soup its creamy texture?

The creaminess comes from melting cream cheese and sharp cheddar into the warm broth, creating a smooth, velvety consistency.

→ Can I use fresh broccoli for better flavor?

Yes, fresh broccoli florets provide a tender texture and bright flavor that enhances the overall dish.

→ How do the spices affect the soup's taste?

Smoked paprika, ground mustard, onion powder, and cayenne add subtle warmth and depth, balancing the richness of the cheese and freshness of the vegetables.

→ Is it possible to substitute the chicken stock?

Vegetable stock can be used as a flavorful alternative, maintaining the balance while keeping it suitable for various preferences.

→ Can I prepare this dish ahead of time?

Yes, letting it cool before refrigerating helps flavors meld even further. Reheat gently to preserve the creamy texture.

Keto Broccoli Cheddar

A creamy blend of broccoli and sharp cheddar with subtle spices for a comforting low-carb meal.

Prep Time
10 minutes
Cooking Time
10 minutes
Complete Time
20 minutes
Published By: Luna

Recipe Category: Main Dishes

Skill Level: Beginner-Friendly

Cuisine Type: American

Total Portions: 4 Serves How Many

Dietary Preferences: Low-Carb Option, Vegetarian-Friendly, Gluten-Free

Required Ingredients

→ Dairy

01 57 g unsalted butter
02 170 g cream cheese
03 113 g freshly grated sharp cheddar cheese

→ Vegetables & Aromatics

04 1 large carrot, julienned
05 2 small cloves garlic, minced
06 360 g small broccoli florets

→ Spices & Seasonings

07 3/4 teaspoon smoked paprika
08 3/4 teaspoon ground mustard
09 3/4 teaspoon onion powder
10 Pinch cayenne pepper
11 Kosher salt, to taste
12 Freshly ground black pepper, to taste

→ Liquids

13 960 ml low-sodium chicken stock

Step-by-Step Instructions

Step 01

Melt the unsalted butter in a medium saucepan over medium heat. Add the julienned carrot and minced garlic, cooking and stirring until fragrant, approximately 2 minutes. Incorporate smoked paprika, ground mustard, onion powder, and cayenne pepper.

Step 02

Pour in the low-sodium chicken stock and bring the mixture to a boil. Season with kosher salt and freshly ground black pepper to taste.

Step 03

Add the broccoli florets to the saucepan and reduce heat to a simmer. Cook until broccoli is very tender, about 3 to 5 minutes. Stir in the cream cheese and sharp cheddar until fully melted and integrated.

Step 04

Adjust seasoning with additional salt and pepper if needed. Serve the soup warm.

Handy Cooking Tips

  1. For a smoother texture, consider blending the soup before adding the cheeses.

Necessary Kitchen Tools

  • Medium saucepan
  • Wooden spoon or spatula

Allergy Details

Always check ingredient packaging for potential allergens and consult a healthcare professional when in doubt.
  • Contains dairy

Nutritional Information (Per Serving)

These nutrition details are for guidance and don’t replace professional advice.
  • Calories: 320
  • Fat: 28 grams
  • Carbohydrates: 10.5 grams
  • Proteins: 12 grams