Crockpot Broccoli Cheddar Soup (Creamy, Café-Style & Easy)

Thick, velvety and loaded with sharp cheddar, this Crockpot Broccoli Cheddar Soup tastes like the bread-bowl soup from your favorite café, minus the drive. Everything simmers low and slow, then a handful of cheese melts in at the end for that silky, cheesy finish.

It’s an easy weeknight dinner that feels like a treat, and it’s ready when you walk in the door. If you’re on a soup kick, my creamy potato soup and this hearty crockpot cowboy soup are great next picks.

Why This Broccoli Cheddar Soup Works

• Café-style flavor at home. Sharp cheddar plus a little Dijon gives it that tangy, deep cheese taste.
• Silky, never grainy. The cheese goes in at the very end, off high heat, so it melts smoothly.
• Hands-off. About 15 minutes of prep, then the slow cooker takes over.
• Sneaks in veggies. Broccoli, carrots and onion disappear into every cheesy spoonful.

Ingredients You’ll Need

• Fresh broccoli: Chop the florets small and thinly slice the peeled stems too. Frozen works in a pinch.
• Carrots and onion: Sweetness and body. Shred the carrots so they melt into the soup.
• Garlic and butter: The flavor base.
• Chicken or vegetable broth: Use low-sodium so you control the salt.
• Half-and-half: Creamy without being too heavy. Heavy cream makes it richer.
• Flour: Mixed with butter into a quick roux to thicken the soup.
• Sharp cheddar: Shred it from a block. Bagged cheese has anti-caking powder that can make the soup gritty.
• Dijon mustard, paprika, salt and pepper: Small amounts that make the cheese taste “cheesier.”

How to Make Broccoli Cheddar Soup in the Slow Cooker

1. Load the crockpot. Add broccoli, shredded carrots, onion, garlic, broth, Dijon, paprika, salt and pepper to a 6-quart slow cooker.
2. Cook. Cover and cook on LOW for 4–5 hours or HIGH for 2–3 hours, until the broccoli is very tender.
3. Make a quick roux. In a small saucepan, melt butter, whisk in flour and cook 1 minute. Slowly whisk in the half-and-half until smooth and slightly thick.
4. Thicken. Stir the roux into the slow cooker. Blend part of the soup with an immersion blender for a creamy base with some chunks left.
5. Add cheese. Switch the cooker to WARM. Stir in the cheddar a handful at a time until melted. Taste and adjust salt.

Tips for the Creamiest Soup

• Never boil after adding cheese. High heat makes cheddar split and turn grainy.
• Blend only half. You get a smooth, thick soup with bites of broccoli.
• Too thick? Splash in more broth. Too thin? Let it sit on WARM with the lid off for 15 minutes.

What to Serve With It

Serve it in a toasted sourdough bread bowl, with a grilled cheese sandwich, or beside a crisp apple salad. For a lighter lunch idea, pair a small cup with one of these protein bowl recipes.

Storage and Reheating

Store leftovers in the fridge for up to 4 days. Reheat gently on the stove over low heat, stirring often. Cream-and-cheese soups can separate when frozen, so this one is best enjoyed fresh.

Frequently Asked Questions

Can I use frozen broccoli?

Yes. Use a 16 oz bag, no need to thaw. It may cook a little faster, so check it after 3 hours on LOW.

Why did my cheese soup turn grainy?

Usually the heat was too high or the cheese was pre-shredded. Add freshly shredded cheese on WARM and stir gently.

Can I make it without flour?

Yes. Skip the roux and blend more of the soup, or stir in 4 oz of softened cream cheese to thicken it.

Is this soup gluten-free?

Swap the flour for a cornstarch slurry (2 tbsp cornstarch mixed with 2 tbsp cold water) and check that your broth is gluten-free.

More Cozy Soups You’ll Love

• Crockpot Cowboy Soup
• Creamy Potato Soup
• Best Ever Chicken Noodle Soup
• Lasagna Soup
• 10 Cozy Soup Recipes for Fall

Crockpot Broccoli Cheddar Soup Recipe

Prep: 15 min | Cook: 4–5 hrs on Low | Servings: 6

Ingredients

• 5 cups chopped fresh broccoli (about 2 medium heads, stems peeled and sliced)
• 1 cup shredded carrots
• 1 medium yellow onion, finely diced
• 3 cloves garlic, minced
• 4 cups low-sodium chicken or vegetable broth
• 1 tsp Dijon mustard
• ½ tsp smoked paprika
• 1 tsp salt, plus more to taste
• ½ tsp black pepper
• 4 tbsp butter
• ¼ cup all-purpose flour
• 2 cups half-and-half
• 3 cups (12 oz) sharp cheddar, freshly shredded

Instructions

1. Add broccoli, carrots, onion, garlic, broth, Dijon, paprika, salt and pepper to a 6-quart slow cooker.
2. Cover and cook on LOW 4–5 hours or HIGH 2–3 hours, until the broccoli is very tender.
3. Melt butter in a saucepan, whisk in flour and cook 1 minute. Slowly whisk in half-and-half until smooth and slightly thick.
4. Stir the mixture into the slow cooker. Partly blend with an immersion blender.
5. Switch to WARM and stir in the cheddar a handful at a time until melted. Season and serve.

Nutrition (estimated, per serving): about 430 calories, 19 g protein, 17 g carbs, 4 g fiber, 32 g fat.

Love this cheesy soup? Save it to your Pinterest soup board so it’s ready for the next cold night!