If you’re dreaming of a creamy, comforting bowl of soup that practically cooks itself, look no further. This Slow Cooker Broccoli Cheese Soup is everything you love about the classic, made effortless with your trusty slow cooker. You get tender broccoli, a velvety cheesy base, and hints of savory goodness all swirled together into a bowlful of pure happiness. Whether it’s a lazy Sunday or you’re after an easy weeknight dinner, this soup hits all the notes: it’s rich, hearty, and brimming with flavor in every bite.

Ingredients You’ll Need
Let’s talk about the magic behind this soup: simple, real ingredients that each bring their own character to the bowl. From fresh veggies to sharp cheddar, every item here adds depth, color, or silky texture—making this soup irresistible.
- Onion: Adds a subtle sweetness and aromatic base that makes every spoonful more comforting.
- Fresh Broccoli: The star of the show! Fresh florets give that classic color and a tender bite.
- Matchstick Carrots: Bring vibrant color and a gentle crunch for extra heartiness.
- Celery: Offers earthy flavor and lovely texture to complement the broccoli.
- Salt: Essential for enhancing all the flavors and bringing the soup together.
- Black Pepper: Adds a gentle kick and balances the creaminess with a subtle heat.
- Chicken Stock: The flavorful foundation that infuses the soup with savory depth; swap for veggie stock for a vegetarian version!
- Butter: Used for the roux, it provides a rich, silky backdrop for the cheese.
- Flour: Thickens the soup, creating that dreamy, creamy texture you crave.
- Milk: Makes the soup luscious and smooth—whole milk works best for richness.
- Cheddar Cheese: Melts into the soup, lending its signature sharpness and gooey appeal—go for freshly grated for best results.
- Ranch Seasoning: A little secret for a burst of herby tanginess that makes every bowl pop.
- Scallions: Freshly sliced, they lighten things up as a garnish and add a touch of crunch.
How to Make Slow Cooker Broccoli Cheese Soup
Step 1: Prep the Veggies
Start by finely chopping the onion, dicing the celery, and breaking the broccoli into bite-sized florets. Using matchstick carrots makes life so much easier—no need to peel or chop! Prepping everything before you start streamlines the process and means less chaos later on.
Step 2: Build the Base in the Slow Cooker
Add your onion, broccoli, carrots, and celery directly into the slow cooker. Sprinkle over the salt, black pepper, and ranch seasoning. Next, pour in the chicken stock. This blend of seasonings and stock is the backbone of your Slow Cooker Broccoli Cheese Soup, ensuring every veggie gets soaked with flavor from the start.
Step 3: Let It Simmer
Pop the lid on and set your slow cooker to low for 4–5 hours or high for 2–3 hours. This gentle heat coaxes all the flavors together, transforming the veggies into tender little bites that meld perfectly into the soup.
Step 4: Make the Creamy Roux
About 30 minutes before the soup is done, melt the butter in a saucepan over medium heat. Whisk in the flour until smooth, and let it cook for a minute or so to nix any raw flour taste. Slowly pour in the milk, whisking constantly, until the mixture thickens into a lush, creamy sauce. This is what will give your Slow Cooker Broccoli Cheese Soup its unmistakable creaminess.
Step 5: Add Cheese and Make It Silky
Turn the heat to low and stir in the cheddar cheese, a little at a time, until it’s fully melted and silky. Pour this cheesy goodness into the slow cooker and stir until combined. Let the soup warm for another 10–15 minutes—no one can resist those cheesy ribbons running through each bowl!
Step 6: Final Touches
Right before serving, give the soup a quick taste and adjust salt or pepper if needed. For a smoother consistency, use an immersion blender for a quick blitz, or leave it chunky for a more rustic feel. Top each bowl with fresh scallions and you’re ready to serve up some magic!
How to Serve Slow Cooker Broccoli Cheese Soup

Garnishes
A finishing touch can elevate every bowl. Scatter fresh scallions or chives on top for a burst of color and crunch. Go classic with an extra sprinkle of cheddar, or try crispy fried onions for a playful twist. If you love spice, a dash of hot sauce or red pepper flakes will wake up the flavors without overpowering the creamy base.
Side Dishes
Pair your Slow Cooker Broccoli Cheese Soup with warm crusty bread—think baguette slices or a hunk of sourdough for dunking. A simple green salad dressed with a light vinaigrette balances the richness of the soup beautifully. For heartier appetites, toasted sandwiches or garlic bread are always a crowd-pleaser alongside each comforting bowl.
Creative Ways to Present
If you want to impress, ladle the soup into individual bread bowls for a fun, edible twist. Serve in mugs with skewered grilled cheese dippers for a cozy snack, or set up a “toppings bar” with various cheeses, herbs, and crunchy add-ins to let everyone customize their own perfect bowl.
Make Ahead and Storage
Storing Leftovers
Leftover Slow Cooker Broccoli Cheese Soup stores beautifully for up to 4 days in the refrigerator. Pour cooled soup into an airtight container and give it a quick stir before reheating; the flavors get even better the next day, making it a fantastic option for meal prep.
Freezing
You can absolutely freeze this soup, but keep in mind the dairy can sometimes separate when reheated. For the best texture, cool the soup completely, portion into freezer-safe containers (leaving a bit of space for expansion), and label with the date. Thaw overnight in the fridge before reheating.
Reheating
To reheat Slow Cooker Broccoli Cheese Soup, warm gently on the stovetop over medium-low heat, stirring frequently. If it looks a little separated, whisk in a splash of milk or stock until it’s creamy again. The microwave also works for single servings—just heat in intervals and stir in between to keep things smooth.
FAQs
Can I make Slow Cooker Broccoli Cheese Soup vegetarian?
Absolutely! Simply swap out the chicken stock for a rich vegetable stock to keep all the flavor while making it vegetarian-friendly.
What’s the best cheese to use?
Sharp cheddar is a classic and melts beautifully into the soup, but you can experiment with a mix of cheeses like Monterey Jack, gouda, or even a bit of Parmesan for extra umami.
Can I add potatoes or other vegetables?
Definitely! Diced potatoes, cauliflower, or even a handful of spinach can be tossed in for extra texture and nutrients—just be sure to add them at the start, so they have plenty of time to soften.
How can I make the soup extra thick?
If you love a very thick Slow Cooker Broccoli Cheese Soup, reduce the amount of chicken stock by half a cup, or blend a portion of the cooked vegetables right in the pot to add body and creaminess.
Is it ok to use frozen broccoli?
Yes! If fresh broccoli isn’t on hand, frozen florets work just as well—no need to thaw, just add them straight to the slow cooker and get ready for delicious results.
Final Thoughts
This Slow Cooker Broccoli Cheese Soup is the cozy, cheesy hug we all crave—from busy weeknights to lazy weekends. I can’t wait for you to whip up a batch and taste just how easy comfort food can be. Grab your slow cooker, get chopping, and let the aroma fill your home—it’s sure to become a new family favorite!
PrintSlow Cooker Broccoli Cheese Soup Recipe
Indulge in a creamy and comforting bowl of Slow Cooker Broccoli Cheese Soup. This easy-to-follow recipe results in a rich and flavorful soup that’s perfect for any occasion.
- Prep Time: 20 minutes
- Cook Time: 4 hours
- Total Time: 4 hours 20 minutes
- Yield: 6 servings
- Category: Soup
- Method: Slow Cooker
- Cuisine: American
- Diet: Vegetarian
Ingredients
Vegetables:
- 1 small onion
- 4 cups fresh broccoli
- 1 cup matchstick carrots
- 1 stalk celery
Seasonings:
- 2 tsp salt
- 1 tsp black pepper
- 1 tsp ranch seasoning
Liquids:
- 4 cups chicken stock
- 2 cups milk
Dairy:
- ¼ cup butter
- 3 cups cheddar cheese
Garnish:
- scallions
Instructions
- Sauté the Vegetables: Begin by sautéing the onion, broccoli, carrots, and celery in a skillet until slightly tender.
- Season and Transfer: Season the vegetables with salt, pepper, and ranch seasoning. Transfer the mixture to the slow cooker.
- Add Liquids: Pour in the chicken stock and milk.
- Create Roux: In a saucepan, melt butter and whisk in flour to create a roux. Cook for a few minutes.
- Thicken the Soup: Slowly whisk the roux into the slow cooker mixture to thicken the soup.
- Finish with Cheese: Stir in cheddar cheese until melted and well combined.
- Serve: Ladle the soup into bowls, garnish with scallions, and enjoy!
Notes
- For a smoother soup, consider using an immersion blender to blend the mixture.
- This soup can be stored in the refrigerator for up to 3 days.
Nutrition
- Serving Size: 1 cup
- Calories: 350
- Sugar: 5g
- Sodium: 900mg
- Fat: 24g
- Saturated Fat: 14g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 17g
- Fiber: 3g
- Protein: 18g
- Cholesterol: 70mg