The first thing you'll notice is the sound: a low, lazy simmer with tiny cheese bubbles popping at the edge of the pot. Then comes the smell of butter and onion, and suddenly your kitchen feels like a booth by the window at Panera.
This is the soup that made broccoli famous, and yes, it's a cinch at home. You build a quick roux, let the vegetables go tender in broth, then melt in a mountain of sharp cheddar off the heat so it stays glossy instead of grainy.
If you've ever had a bowl come out stringy or thin, it wasn't you, it was technique. Follow the heat cues below and you'll get that thick, silky, bread-bowl-worthy texture on the very first try.
Why You'll Love This Recipe
About the Ingredients
6 tablespoons (85g) unsalted butter
Use a good European-style butter for flavor. Salted butter works too; just drop the added salt in the soup by half.
1 medium yellow onion, finely diced (about 1 1/2 cups)
Yellow onion gives the sweetest base; sweet onion is a fine swap if that's what's in your basket.
1/4 cup (30g) all-purpose flour
This is your thickener, so don't skip it. For a gluten-free pot, whisk in 2 tablespoons cornstarch instead.
2 cups (480ml) whole milk
Whole milk makes it creamy; 2% works but goes thinner. Avoid skim, which can break when it meets the cheese.
3 cups (720ml) low-sodium chicken broth
Vegetable broth makes this fully vegetarian and tastes just as rich. Low-sodium keeps you in charge of the salt.
3 cups (about 300g) broccoli florets, cut into small bite-size pieces
Buy a head and cut your own for the freshest flavor; frozen florets work in a pinch, no thawing needed.
1 large carrot, peeled and grated (about 3/4 cup)
Grating instead of dicing mimics the original texture. A bag of pre-shredded carrot saves you five minutes.
3 cups (340g) shredded sharp cheddar cheese
Shred it yourself from a block; pre-shredded cheese is coated in starch and melts grainy. Extra-sharp gives the biggest punch.
1/2 teaspoon kosher salt, plus more to taste
Hold back some salt until the cheese goes in, since cheddar brings its own. Taste before you season again.
1/4 teaspoon freshly ground black pepper
Fresh-cracked pepper blooms in the warm soup. A pinch of cayenne is a lovely sneaky upgrade.
Tips & Tricks
Grate your own cheese
Bagged shredded cheddar is dusted with anti-caking starch, which is the number one cause of grainy soup. A block and a box grater fix it in three minutes.
Cut broccoli small and uniform
Bite-size florets cook in the same time as the carrot and never turn to mush. Big chunks steam unevenly and go gray.
Season at the end
Cheese is salty, so taste after melting and adjust. Adding all your salt early is how a good pot ends up too salty to fix.
- Keep the heat low after the cheese goes in: Cheddar above a gentle simmer will break and turn stringy. Pull the pot off the burner, stir in handfuls, and only warm it back up on low.
Pro Tips
Step-by-Step Instructions
1. Sweat the onion
Melt the butter in a heavy Dutch oven over medium heat, 350F (175C) if you're using a thermometer, and cook the onion for 5 to 6 minutes until soft and translucent. You're listening for a gentle sizzle, not a roar; if it crackles loudly, drop the heat.
2. Build the roux
Sprinkle the flour over the butter and onions and whisk constantly for 2 minutes until it smells nutty and looks like pale golden paste. Raw flour tastes chalky, so don't rush this step.
3. Pour in the milk
Add the milk in a slow stream, whisking the whole time, and cook for 3 to 4 minutes until the mixture thickens enough to coat the back of a spoon. It should look like loose gravy.
4. Add broth and vegetables
Stir in the broth, broccoli, carrot, salt, and pepper. Bring it to a bare simmer, then cover and cook for 12 to 15 minutes until a fork slides easily into a broccoli stem. Keep the lid cracked so it doesn't boil over.
5. Blend to your liking
Ladle about 2 cups of soup into a blender, pulse twice, and stir it back in for that signature half-smooth texture. Skip this if you love a chunky pot; it's purely a texture call.
6. Melt the cheese off heat
Turn off the burner, wait 2 minutes, then stir in the cheddar one handful at a time until each addition disappears before adding the next. The soup should look glossy and ribbon-thick, with no strings trailing from the spoon.
7. Taste and serve
Taste, add salt or pepper if it needs a nudge, and ladle into warm bowls. Serve right away, because this soup is at its silkiest in the first twenty minutes.
Delicious Variations
Smoky Bacon Cheddar
Crisp 6 slices of bacon first, use 2 tablespoons of the drippings in place of some butter, and crumble the bacon on top.
Cauliflower Swap
Replace half the broccoli with small cauliflower florets for a milder, sweeter pot that still tastes like the original.
Spicy Jalapeno Cheddar
Stir in one minced jalapeno with the onion and finish with a pinch of cayenne for a bowl with a gentle back-of-the-throat warmth.
How to Store Copycat Panera Broccoli Cheddar Soup
Refrigerator
Store in an airtight container in the fridge for up to 4 days. It thickens as it chills, which is completely normal.
Freezer
Freeze in portions for up to 2 months, leaving an inch of headspace. Dairy soups can separate slightly, so thaw overnight in the fridge and whisk while reheating.
Reheating
Warm gently over low heat, 300F (150C) if you're using a thermometer, stirring often and adding a splash of milk or broth to loosen. Never boil it, or the cheese will break.
Frequently Asked Questions
Q: Why did my broccoli cheddar soup turn grainy?
Your cheese got too hot, which makes the proteins squeeze together and separate. Add the cheddar only after the pot is off the heat, stir it in a handful at a time, and never let the soup boil afterward.
Q: Can I make this broccoli cheddar soup without flour?
Yes, swap the flour for 2 tablespoons of cornstarch whisked into the cold milk before it goes in the pot. The soup will be a touch glossier but every bit as thick.
Q: How do I make it taste more like Panera?
Use extra-sharp cheddar and grate your own, then blend about a third of the soup for that half-smooth texture. A bread bowl doesn't hurt either.
Q: Can I use frozen broccoli?
Absolutely, and you don't need to thaw it first. Add it straight from the bag and give the pot 2 extra minutes of simmering before you blend.
Q: Is this soup gluten free?
Not as written, since the roux uses wheat flour. Swap in cornstarch as noted above and double-check that your broth and cheese are certified gluten free.
Grab your biggest pot and a block of sharp cheddar, and let's make the soup that beats the drive-thru line. Taste as you go, then taste again.
Copycat Panera Broccoli Cheddar Soup
This copycat Panera broccoli cheddar soup is velvety, cheesy, and loaded with tender broccoli florets and sweet carrots in every single spoonful.
🧂 Ingredients
- 6 tablespoons (85g) unsalted butter
- 1 medium yellow onion, finely diced (about 1 1/2 cups)
- 1/4 cup (30g) all-purpose flour
- 2 cups (480ml) whole milk
- 3 cups (720ml) low-sodium chicken broth
- 3 cups (about 300g) broccoli florets, cut into small bite-size pieces
- 1 large carrot, peeled and grated (about 3/4 cup)
- 3 cups (340g) shredded sharp cheddar cheese
- 1/2 teaspoon kosher salt, plus more to taste
- 1/4 teaspoon freshly ground black pepper
📋 Instructions
- 1Sweat the onion — Melt the butter in a heavy Dutch oven over medium heat, 350F (175C) if you're using a thermometer, and cook the onion for 5 to 6 minutes until soft and translucent. You're listening for a gentle sizzle, not a roar; if it crackles loudly, drop the heat.
- 2Build the roux — Sprinkle the flour over the butter and onions and whisk constantly for 2 minutes until it smells nutty and looks like pale golden paste. Raw flour tastes chalky, so don't rush this step.
- 3Pour in the milk — Add the milk in a slow stream, whisking the whole time, and cook for 3 to 4 minutes until the mixture thickens enough to coat the back of a spoon. It should look like loose gravy.
- 4Add broth and vegetables — Stir in the broth, broccoli, carrot, salt, and pepper. Bring it to a bare simmer, then cover and cook for 12 to 15 minutes until a fork slides easily into a broccoli stem. Keep the lid cracked so it doesn't boil over.
- 5Blend to your liking — Ladle about 2 cups of soup into a blender, pulse twice, and stir it back in for that signature half-smooth texture. Skip this if you love a chunky pot; it's purely a texture call.
- 6Melt the cheese off heat — Turn off the burner, wait 2 minutes, then stir in the cheddar one handful at a time until each addition disappears before adding the next. The soup should look glossy and ribbon-thick, with no strings trailing from the spoon.
- 7Taste and serve — Taste, add salt or pepper if it needs a nudge, and ladle into warm bowls. Serve right away, because this soup is at its silkiest in the first twenty minutes.
Priya writes about South Indian home cooking and the improvisation that happens in real kitchens, from quick weekday tiffins to slow weekend spreads. She is interested in how a single tempering of spices changes a dish and in adapting familiar recipes to what a cook has on hand. Her angle is playful, sensory recipe writing that treats cooking as something to tinker with.