Creamy Instant Pot Mac and Cheese (No Roux!)
If you’re craving creamy, cheesy comfort food without the wait, this Instant Pot Mac and Cheese is for you. It’s rich, velvety, and kid-approved. Ready in under 20 minutes, no roux, no baking required (unless you want that golden, bubbly topping).
Just toss in your pasta, hit a button, and get ready for the easiest homemade mac and cheese ever. Whether it’s a quick weeknight dinner or a comforting side dish for your next gathering, this one’s always a hit.
Just wheel on by that blue box mix in the store. You know the one. With this awesome recipe, you’re on a mission to make the tastiest mac and cheese in under 20 minutes.
Why You’ll Love This Mac and Cheese
- One-pot and done. No need to boil pasta separately or dirty extra dishes.
- Customizable. Switch up the cheeses, toss in protein, or add veggies. Make it your own!
- Faster than the boxed stuff. Okay, almost. But it tastes way better.
- Perfect for busy parents. Minimal effort, major comfort.
Ingredients Needed
Cheese
Sharp cheddar and Gruyère make the sauce extra creamy and flavorful. I highly recommend grating your own cheese since it melts much smoother than pre-shredded cheese.
Milk
Whole milk gives the mac and cheese a rich, creamy texture, but you can also use a splash of heavy cream if you want it even richer.
Breadcrumb Topping
If you want more of a baked mac and cheese feel, the optional breadcrumb topping adds a crispy, golden layer on top with very little extra work.
Please scroll ⬇️ to the recipe card for the full ingredient amounts and instructions.
How to Make Instant Pot Mac and Cheese
One of the best things about this recipe is how simple it is. Everything cooks right in the Instant Pot, so you don’t have to boil pasta separately or make a cheese sauce on the stove.
The pasta cooks directly in the water and butter, which helps keep things easy and cuts down on dishes. Once the pressure cooking is done, make sure to quick release right away so the pasta doesn’t overcook. Some pasta brands absorb liquid differently, so if it looks a little thin at first, give it a minute or two to thicken as the cheese melts.
After cooking, stir in the milk, shredded cheese, salt, and pepper while everything is still hot. I recommend shredding your own cheese if possible since pre-shredded cheese doesn’t melt quite as smoothly. The sauce will continue to thicken as it sits.
If you want more of a baked mac and cheese feel, you can transfer everything to a baking dish, sprinkle breadcrumbs on top, and broil for a few minutes until golden and bubbly. It adds a nice crunchy topping without much extra work.
Variations and Topping Ideas
This Instant Pot mac and cheese is really easy to customize depending on what you have at home. If you want a little heat, stir in some hot sauce, cayenne, or smoked paprika. For a more filling version, you can mix in shredded rotisserie chicken, crispy bacon, or even lobster for a richer mac and cheese.
You can also add vegetables like peas, broccoli, or roasted cauliflower to make it feel more like a full meal.
If you skip the broiling step, you can still add toppings right before serving. Crispy bacon, caramelized onions, toasted breadcrumbs, or extra cheese all work really well here.
Tips for the Creamiest Instant Pot Mac and Cheese
✔️ No draining needed. The leftover starchy water helps create a creamy sauce naturally.
✔️ Don’t worry if the sauce looks thin at first. The pasta keeps absorbing liquid as it sits and thickens quickly.
✔️ Stir in the milk after pressure cooking for the creamiest texture. Whole milk works best here.
✔️ For an even richer mac and cheese, add a little sour cream or cream cheese.
✔️ Freshly grated cheese melts smoother than pre-shredded cheese and gives the best texture.
Serving Suggestions
This Instant Pot mac and cheese is comforting and filling all on its own, but it also makes an easy, crowd-pleasing side dish. Serve it alongside BBQ ribs, pulled pork, or instant pot lemon chicken for a hearty main course. It’s also great next to blackened tilapia, air fryer catfish, burgers, or meatloaf. Basically, any classic comfort food. To balance out the richness, pair it with something fresh like a crisp green salad or sautéed greens like spinach or kale.
How to Store and Reheat Leftovers
- Refrigerate: Store in an airtight container for up to 3 days.
- Reheat: Microwave with a splash of milk to loosen it up. Stir well before serving.
- Freeze: Cool completely, then freeze in a sealed container for up to 2 months. Reheat in the oven at 350°F, covered with foil. Add a splash of milk and stir halfway through.
Easy Comfort Food Anytime
This Instant Pot mac and cheese is one of those recipes that’s hard not to make on repeat because it’s fast, creamy, and always a crowd favorite. It’s great as a quick dinner, easy side dish, or even packed into leftovers for the next day.
If you make it, leave a comment below and let me know how you customized it. And don’t forget to save it to Pinterest so you can make it again later.
RECIPE
Instant Pot Mac and Cheese
Ingredients
For the Mac and Cheese:
- 1 pound dried elbow macaroni (16 oz)
- 4 cups water
- 1 tablespoon unsalted butter
- 3 cups sharp cheddar cheese freshly grated
- 1 cup gruyere cheese shredded
- ½ to 1 cup whole milk (adjust to your desired creaminess)
- salt and pepper, to taste
For the Breadcrumb Topping:
- ¾ cup panko breadcrumbs
- 2 tablespoons melted butter
- ½ cup shredded cheddar cheese
- ½ cup grated parmesan cheese
Instructions
- Cook the Pasta: Add macaroni, water, and butter to the Instant Pot. Seal the lid and set to [Pressure Cook] (or Manual) on high for 4 minutes. When done, quick release the pressure.
- Add the Cheese: Open the lid. Stir in ½ cup of milk, then gradually mix in cheddar and Gruyère, 1 cup at a time, stirring between each addition. Add more milk until it reaches your desired level of creaminess. Season with salt and pepper to taste.
- Assemble and Broil: Transfer the mac and cheese to a 9×13-inch oven-safe baking dish.
- Make the Topping: In a bowl, mix panko, melted butter, cheddar, and Parmesan. Spread evenly over the mac and cheese.
- Finish Under the Broiler: Broil for 4–5 minutes, or until golden and bubbly. Watch closely!
- Serve Warm: Best enjoyed fresh out of the oven!
Notes
- Freshly grated cheese melts more smoothly and gives the creamiest texture.
- Don’t worry if the sauce looks thin at first. The pasta will continue absorbing liquid as it sits.
- Whole milk works best for a rich, creamy sauce.
- For a baked mac and cheese feel, broil with breadcrumbs and extra cheese for a few minutes until golden.
- Store leftovers in an airtight container in the refrigerator for up to 4 days. Add a splash of milk when reheating to loosen the sauce.
Very good. So much easier than on the stovetop. I do short ribs in it so cook the short ribs in liquid after browning in the instant pot. After 45 minutes i slow release, remive the meat and shred. I then just top off the instant pot with water to 4 cups when done, Cook the pasta in that and omit the butter since the broth is pretty greasy. I didn’t have whole milk so just added cream cheese. Thank you for the recipe!
Hi Jenny! I love how you turned this into a full one-pot meal. And all of your swaps make total sense, especially skipping the butter and using cream cheese instead. Thanks so much for sharing what you did, I know this will be really helpful for other readers too!
I also sub Swiss for Gruyère and just as good.
Delish! My family loves this and it is so easy. The pot is messy to clean but worth it. Found this for Thanksgiving when oven space was tight and make it throughout the year.
I’m a sucker for spicy food so I threw in some cayenne pepper and hot sauce into this mac and cheese. I also used a mix of sharp cheddar and gruyere cheese, and it was deliciously gooey. It was the ultimate comfort food!
Made this mac and cheese with lobster and it was so creamy and cheesy that really melts in my mouth. Added cayenne pepper for a little kick. Super yummy classic comfort food!
I love the sharp cheddar and gruyere combination. Turned out so creamy and delicious. The whole family loved it.
So worth the try! They came out cheesy, creamy and absolutely perfect. This was also very easy to make and the whole fam loved it there were barely any leftovers!
Creamy, cheesy and so delicious! This mac and cheese recipe is my new go-to comfort food! I just want to bury my face in all the yummy cheesiness! lol
Came out perfect, made according to recipe. Family loved it!