Instant Pot Broccoli Cheddar Soup
A creamy, cheesy broccoli cheddar soup made easily in the Instant Pot, perfect for chilly evenings and quick weeknight meals.
I’ve made this Instant Pot broccoli cheddar soup more times than I can count on chilly weeknights — it’s fast, forgiving, and hits that cozy, cheesy comfort-soup spot every time. Small-chopped broccoli and shredded carrots cook almost instantly under pressure, and the shortcut of melting cheese into hot cream keeps the texture silky. If you want a reference for another similar take I tested, check out Recipesmoke’s Instant Pot broccoli cheddar soup for comparison.
Why you’ll love this dish
This soup is the kind of recipe that delivers big flavor with minimal fuss. It’s:
- Quick: 1 minute at pressure plus a few finishing minutes — real weeknight speed.
- Kid-friendly: creamy, cheesy, and full of familiar veg.
- Budget-smart: broccoli, carrots, and onion stretch a little cheese a long way.
- Customizable: make it thicker or thinner, vegetarian by swapping broth, or dairy-free with suitable swaps.
It’s perfect for chilly evenings, packing in thermoses for lunch, or serving as a starter at casual dinners.
The cooking process explained
A quick overview so you know what’s coming:
- Chop vegetables very small so they become tender in a short pressure cook.
- Sauté butter, garlic (briefly) with the raw veggies in the inner pot, then add broth and seasonings.
- Pressure cook on high for 1 minute; quick release.
- Stir in half-and-half and shredded cheddar until melted.
- Whisk a cornstarch slurry and add slowly, then use the sauté function to thicken to your liking.
- Adjust seasoning and serve with garnishes.
This sets realistic expectations: most of the time is hands-off, with a short period of finishing on sauté to achieve the perfect creaminess.
What you’ll need
- 4 cups broccoli (chopped very small)
- 1 ½ cups carrots (shredded or chopped very small)
- 1 onion (diced)
- 4 cups broth (use 3 cups for a thicker soup) — chicken or vegetable broth works
- 4 Tbsp butter (unsalted)
- 2–3 garlic cloves (minced)
- ½ tsp sea salt
- ½ tsp cracked pepper
- ½ tsp paprika
- 2 cups half and half (substitute whole milk for lighter soup or heavy cream for extra richness)
- 2 ½ cups shredded cheddar cheese (freshly shredded melts best; pre-shredded may be grainier)
- ¼ cups corn starch (gluten-free thickener; use arrowroot as a 1:1 swap)
- ¼ cups water (to make slurry)
Notes: chopping the broccoli very small ensures tenderness after just 1 minute at pressure. Fresh-shredded cheese is recommended for a smoother melt.
Directions to follow
- Prepare: Chop broccoli very small, shred or chop carrots finely, and dice the onion. Mince garlic.
- Build the soup: Put all vegetables in the Instant Pot inner pot. Add broth, butter, garlic, paprika, salt, and pepper. Stir to combine.
- Seal and pressure cook: Close the lid and set the vent to “sealing.” Pressure cook on high (or “manual” on Instant Pot) for 1 minute. Allow the pressure to come up and the cycle to finish. Perform a quick release when cooking is done.
- Add dairy and cheese: Immediately stir in the half-and-half and shredded cheddar until the cheese melts into the soup. Stir gently to avoid clumping.
- Make the slurry: Whisk the ¼ cups corn starch with the ¼ cups water until completely smooth and lump-free.
- Thicken: Very slowly drizzle the slurry into the hot soup while stirring. Switch the Instant Pot to the “sauté” setting and heat, stirring constantly, until the soup thickens to your preferred consistency.
- Finish and serve: Taste and adjust salt and pepper. Serve right away with your favorite garnishes.
Short, active steps make the process predictable and easy to follow even if you’re new to the Instant Pot.
Instant Pot Broccoli Cheddar Soup
- Prep
- 15 MIN
- Cook
- 10 MIN
- Total
- 30 MIN
- Serves
- 6
01Ingredients
Vegetables
Liquids
Dairy
Seasonings
02Method
- Preparation
- Build the Soup
- Cook
- Add Dairy and Cheese
- Make the Slurry
- Thicken
- Finish and Serve
Tap a step when it's done. The next one lights up.
0 OF 7 DONE03Recipe notes
- 01Use fresh-grated cheddar for a smoother melt. Control thickness by adjusting the amount of broth used.
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Best ways to enjoy it
- Garnishes: extra shredded cheddar, a drizzle of olive oil, cracked black pepper, chopped chives, or crispy turkey bacon bits.
- Bread pairings: crusty sourdough, warm garlic bread, or cheesy toasted croutons.
- Make it a meal: pair with a simple green salad or roast chicken for a heartier dinner. For an indulgent combo, serve alongside a grilled cheese sandwich. If you want an extra hearty side, try a complementary bowl like a hearty cheddar garlic-herb potato soup to round out the meal.
Keep presentation simple: ladle into warmed bowls and top with color and texture for the most inviting look.
How to store & freeze
Refrigerator: Cool the soup to room temperature, transfer to airtight containers, and refrigerate up to 3–4 days.
Freezing: Freeze in shallow, airtight containers for up to 3 months. Note: dairy-based soups can change texture when frozen; reheat gently and whisk or blend to restore creaminess.
Reheating: Reheat over low heat on the stove, stirring frequently. Use a splash of broth or half-and-half to loosen the texture if it’s become too thick. Avoid boiling rapidly — that can break the emulsion and make the soup grainy.
Food safety: Don’t leave the soup out more than 2 hours at room temperature. Cool quickly by dividing into smaller containers before refrigerating.
Recipe variations
- Dairy-free: use full-fat coconut milk and a dairy-free cheddar alternative; thicken with a little tapioca starch.
- Extra veg: stir in cooked cauliflower or spinach at the end.
- Smoky turkey bacon: crisp turkey bacon separately and finish the soup with bits and a splash of pan drippings.
- Spicy kick: add a pinch of cayenne or a spoonful of grainy mustard for depth.
- Cheese swaps: try sharp white cheddar, Gruyère, or a mix of cheddar and fontina for different flavor profiles.
Your questions answered
How long does this take from start to finish?
A: Active prep is about 10–15 minutes (mostly chopping). Pressure come-up is typically 8–10 minutes depending on your Instant Pot, 1 minute cook, quick release, plus 5–10 minutes to melt cheese and thicken — plan roughly 30–40 minutes total.
Can I use frozen broccoli?
A: Yes. If using frozen, you can skip thawing; reduce broccoli chopping step and expect a slightly looser texture. Watch consistency when adding the slurry — frozen veg releases extra water.
Can I use milk instead of half-and-half?
A: You can, but the soup will be thinner and less rich. Use whole milk or add a tablespoon of butter or a splash of cream for body. If using low-fat milk, be gentle with heat to avoid curdling.
What if my cheese clumps when I add it?
A: Remove from high heat, stir gently until it melts. If clumps persist, add a small amount of warm liquid and whisk or briefly use an immersion blender to smooth it out. Freshly shredded cheese reduces clumping.
Is cornstarch the only thickener option?
A: No — use arrowroot 1:1, or make a roux with equal butter and flour (cook in a pan then whisk into the soup). Note roux changes flavor slightly and is not gluten-free.
Conclusion
If you want more recipe inspiration and another Instant Pot version to compare techniques, see this well-tested Instant Pot Broccoli Cheddar Soup from Lemons & Zest. For another idea, try my Keto Broccoli Cheddar Soup.
