by Olena

Instant Pot Mac and Cheese

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Olena Osipov
4.9 from 21 votes

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This Instant Pot Mac and Cheese recipe is the BEST version of this classic comfort food. Velvety, creamy, and cheesy are still the name of the game in this healthier version of macaroni and cheese that uses less cheese than your average recipe. This hands-off, one-pot meal is easy to make with no draining of the water and is ready in 15 minutes! A handful of traditional ingredients make this flavour-loaded mac and cheese truly irresistible!

Our other modern day pressure cooker family favorites around here are Instant Pot cabbage rolls , Instant Pot spaghetti and Instant Pot chicken and rice. Instant Pot comfort meals for the win all day every day!

Instant Pot Mac and Cheese in a blue bowl

Instant Pot Mac and Cheese

Homemade macaroni and cheese is a simple meal, not only because it’s so easy to make but because it’s humble yet delicious and loaded with flavour. It works as a main dish or a side dish and is customizable to whatever you want to add to it to make it a complete comfort meal. The creamy melted cheesy macaroni is something people just can’t get enough of!

Instant Pot macaroni and cheese is the best and fastest way to make it. When making the pressure cooker mac and cheese, it’s a dump and set recipe. This is exactly the kind of recipe you want to have on hand when you are feeling uninspired, tired, and have no idea what to make for dinner. It’s also great for when you’re running low on groceries. Let’s be honest though, we never need an excuse to make delicious mac and cheese. In reality, we make it because we love it and it makes people happy!

Add all the ingredients (except the cheese and milk) and let the Instant Pot do all the work. There’s no draining the pasta after you make pressure cooker mac and cheese because through the cooking process the pasta absorbs the liquid. Then, once it’s done cooking you stir in the milk and cheese and there you have it. Creamy, velvety, and cheesy. The ultimate in quick and easy comfort food. Seriously, good luck stopping at just 1 serving!

My stovetop healthy mac and cheese recipe requires constant stirring and cauliflower mac and cheese needs time to bake, so when I’m short on time, Instant Pot mac and cheese is my go-to (unless I am feeling like a little spicy, then I make chili mac!). I like to make recipes as healthy as possible so I use less cheese than your average recipe, but trust me you won’t notice, and I also use whole wheat pasta. Gluten-free or white pasta works as well.

So, this recipe serves 6 as I’m not a fan of macaroni and cheese leftovers (I know, I know). You can also cut ingredients in half and keep the same cooking time to make less. However, if you want leftovers you can make a little more, or keep some for tomorrow’s lunch or dinner.

Why This Recipe for Mac and Cheese Instant Pot Works?

  • Super easy, hands-off, and one-pot pressure cooker mac and cheese recipe for easy cleanup. With no draining the pasta!
  • Total comfort food. It’s cheesy, creamy, and did I mention cheesy without too much cheese?
  • It’s a versatile dish so it can be used as a main dish served with a side salad or it can be a side to complete any meal.
  • Leftovers can be reheated and enjoyed the next day (you know, if that’s your thing).
  • This healthier version uses less cheese, whole wheat pasta but can be customized to your preferences.
Instant Pot Mac and Cheese inside the pot with a wooden spoon

Ingredients for Instant Pot Macaroni and Cheese

  • Pasta: Traditional elbow shape pasta is the classic. Any other small shape pasta that can hold the sauce like shells works. Whole wheat, white, or gluten-free will do well in this recipe for pressure cooker mac and cheese.
  • Cheese: I use marble or Tex Mex cheese because it melts well, adds colour, and is available organic. A good quality sharp cheddar is also nice.
  • Milk: I always have 3.25% on hand so that’s what I use. 1% or 2% will work. Just keep in mind, the higher the fat content, the creamier the mac and cheese.
  • Spices: A touch of mustard, garlic powder, salt, and pepper is all a good macaroni and cheese needs.

Tip: I recommend buying a block of cheese and grating it yourself as it will not be coated in anti-caking agents that prevent cheese from melting. Also, there is such a difference in quality and taste when using freshly grated cheese.

mac and cheese instant pot ingredients

How to Make Instant Pot Mac and Cheese

  • Add pasta, butter, spices, and water to any size Instant Pot. Most Instant Pot recipes do not require stirring but here I prefer to stir to make sure the pasta cooks through.
  • Cook for 3 minutes on high pressure with the lid closed and valve set to Sealing. It will take your pressure cooker about 5-7 minutes to come to pressure. The smaller the pot, the faster it pressurizes.
  • Wait 8 minutes before releasing pressure. This means you will do a partial natural release. If you turn the valve to Venting right away pasta water will splatter everywhere. Once the 8 minutes is up, then go ahead and turn the valve to venting to finish the release of pressure.
  • Open the lid and stir the pasta. If you see some is stuck together, just separate it gently with a spoon.
  • Add cheese in portions stirring in between. Instant Pot macaroni and cheese might look stringy but once you start stirring in the milk, it will become creamy.
  • Add milk. We like creamy macaroni and cheese, so 1 cup is the perfect amount for us. You can add less and in portions if you prefer. Keep in mind pasta soaks up liquid by the minute.

New to Instant Pot? Check out Instant Pot guide to answer many of your questions. Don’t have one yet? See which Instant Pot I recommend to buy.

Optional Add-Ins and Variations

  • More mustard: You can add more mustard, use Dijon instead of yellow mustard or skip all together. We like just a tiny touch because it does give it a bit of extra tang to our Instant Pot macaroni and cheese.
  • Extra heat: A touch of hot sauce adds more flavour than it does heat. It’s nice! Sriracha, Frank’s Red hot or even a touch of cayenne (ok, so this one has heat), will work.
  • Spices and seasonings: Everything bagel, Montreal steak spice, paprika, nutmeg, soy sauce and even honey are great additions for you creative types 🙂
  • Bacon: Leftover chopped bacon crumbles. I like to bake mine at 425 degrees F for 20 minutes until nice and crispy. Way less mess and they’re basically ready by the time the mac and cheese is done.
  • Dairy free: Use your favorite plant based milk and cheese but keep in mind taste will change and so might the texture.
  • Lactose free: By all means, lactose free milk and cheese are readily available at most grocery stores and will have the same taste and texture in the end.
  • Broth: Using chicken or vegetable broth instead of water will give your macaroni and cheese another layer of flavour.
  • A few readers asked to use yogurt instead of milk. Absolutely you can, mac and cheese will be more tangy. Sour cream would have the same effect.

Tips for Best Pressure Cooker Mac and Cheese Results

  • How long to cook gluten-free pasta: I would cook it for 1 minute with the same 8-minute pressure release. This means you set the time to 1 minute but it still cooks as the pressure builds and releases.
  • If pasta appears undercooked: Try this. Close the lid, let it sit for 5 minutes and let the residual heat continue to cook the pasta. Don’t fret, it will get there.
  • 3 quart Instant Pot: No changes to the recipe are necessary.
  • Double the recipe? Yes, in 6 or 8 quart Instant Pot only. 3 quart is too small for that.

FAQs

Why is my Instant Pot macaroni not cooked?

It could be due to a few reasons. The first being the altitude of where you live affecting the pressure. The second, is perhaps you didn’t add enough liquid to your pot. In order for the noodles to cook properly and absorb the right amount of liquid, you need to make sure your liquid to pasta ratio is spot on. Last, even if your pasta to liquid ratio is right, if you didn’t make sure all pieces of pasta were submerged in the liquid, that could have been the cause for some of it to remain undercooked.

Why is my mac and cheese Instant Pot mushy?

Here you may have run into the opposite problem of adding too much liquid for the amount of pasta. Either that or you let it naturally release for too long, especially for the type of pasta you used. It still cooks as it sits in the pot during the building of the pressure, the cooking time, as well as the releasing of the pressure. If you’re not following the time accurately, you can easily overcook the macaroni.

Why is there water still in my pasta for Instant Pot macaroni and cheese?

A little bit of excess water is ok if you’re happy with the texture of your pasta. Too much water is a sign you just used too much for the type and amount of pasta. The water will eventually absorb if it’s just a bit. If it’s more than just a bit, you could choose to drain it and keep going or keep it and use less milk.

Can I make Instant Pot mac and cheese for two?

Now you’re speaking my language! For some reason I don’t enjoy leftover macaroni and cheese (let me know in the comments if you feel this way too!), so halving this recipe or making in a 3 qt pot is up my alley. You’ll still have enough for 2 portions if you’re eating it as a main meal. If you’re using it as a side, you may still get a bit of leftovers, depending on portion sizes of course.

Serving Recommendations

Obviously, we like pasta and cheese on its own. I mean, what’s not to like?! 🙂 But to make it healthier and a complete meal, here are a few ideas:

Please enjoy without the guilt and if you are looking for something lower carb, check out spaghetti squash mac and cheese! 🙂

Making Instant Pot Macaroni and Cheese in Advance

  • Keep Warm function: Keep in mind pasta absorbs liquids fast and the longer you heat it, the faster the sauce dries out and the pasta becomes mushy. You can rehydrate it by adding a splash of milk take it off the warm function and just reheat it before serving.

Storing & Reheating

  • Storing: Pasta doesn’t freeze well. You can refrigerate leftovers for up to 2 days. Or make less, by cutting recipe ingredients in half and keep the same cook time.
  • To reheat: In the Instant pot, press Sauté and add a splash of water. Stir gently until heated through. Milk burns in a pressure cooker easily, so that’s why I recommend water. On the stovetop, do the same over low heat. If you’re only reheating a serving or two, pop it in the microwave.
Instant Pot Mac and Cheese garnished with black pepper

More Instant Pot Pasta Recipes

Instant Pot Mac and Cheese recipe
Instant Pot Mac and Cheese

Instant Pot Mac and Cheese {Easy Dinner Idea!}

This Instant Pot Mac and Cheese recipe is the BEST version of this classic comfort food. Velvety, creamy, and cheesy are still the name of the game in this healthier version of macaroni and cheese that uses less cheese than your average recipe. This hands-off, one-pot meal is easy to make with no draining of the water and is ready in 15 minutes! A handful of traditional ingredients make this flavour-loaded mac and cheese truly irresistible!
4.86 from 21 votes
Print Save Rate
Course: Dinner
Cuisine: North American
Prep Time: 5 minutes
Cook Time: 11 minutes
Total Time: 16 minutes
Servings: 6 servings
Calories: 383kcal
Author: Olena Osipov

Ingredients

  • 13 oz elbow macaroni uncooked (4 cups)
  • 2 tbsp butter unsalted
  • 1/2 tsp mustard from a bottle
  • 1 tsp garlic powder
  • 3/4 tsp salt
  • Ground black pepper to taste
  • 4 cups water
  • 1 cup milk 2% or 3.25%
  • 1 1/4 cups cheddar or marble cheese, shredded

Instructions

  • To any size Instant Pot, add pasta, butter, mustard, garlic powder, salt, pepper and water.
    Instant Pot Mac and Cheese
  • Close the lid, turn pressure release valve to Sealing and press Pressure Cook on High or Manual for 3 minutes.
    Instant Pot Mac and Cheese
  • After allow pressure come down naturally for 8 minutes to prevent splatters all over your counter. Then turn pressure release valve to Venting to release remaining pressure.
    Instant Pot Mac and Cheese
  • Open the lid and stir pasta gently.
  • Add cheese in portions, stirring in between. It might look stringy.
    Instant Pot Mac and Cheese
  • Then add milk in 1/4 cup portions until desired consistency, stirring in between. Mac and cheese will become creamy.
  • Serve immediately.
    Instant Pot Mac and Cheese

Video

Notes

  • More mustard: You can add more mustard, use Dijon instead of yellow mustard or skip all together. We like just a tiny touch.
  • Extra heat: A touch of hot sauce adds flavour without prominent hot sauce flavour.
  • Dairy free: Use your favorite plant based milk and cheese but keep in mind taste will change.
  • Lactose free: A few readers asked to use yogurt instead of milk. Absolutely you can, mac and cheese will be more tangy.
  • How long to cook gluten free pasta: I would cook it for 1 minute with same 8 minute pressure release.
  • If pasta appears undercooked: Usually due to altitude or whatever other reason because it is Instant Pot. Then close the lid, let it sit for 5 minutes and it will get there.
  • 3 quart Instant Pot: No changes to recipe necessary.
  • Double the recipe? Yes, in 6 or 8 quart Instant Pot only. 3 quart is too small for it.
  • Keep Warm function: Keep in mind pasta absorbs liquids fast and the longer you heat it, the faster sauce dries out and pasta becomes mushy. You can rehydrate dish by adding a splash of milk or don’t keep warm and reheat leftovers before serving.
  • To reheat right in Instant Pot: Press Sauté and add a splash of water. Stir gently until heated through. Milk burns in a pressure cooker easily, so that’s why I recommend water.
  • Storing: Pasta doesn’t freeze well. You can refrigerate leftovers for up to 2 days. Or make less, by cutting recipe ingredients in half and keep same cook time.
See recipe post for more tips and FAQs.

Nutrition

Serving: 1.5cup | Calories: 383kcal | Carbohydrates: 49g | Protein: 15g | Fat: 14g | Saturated Fat: 8g | Cholesterol: 39mg | Sodium: 505mg | Potassium: 220mg | Fiber: 2g | Sugar: 4g | Vitamin A: 420IU | Calcium: 233mg | Iron: 1mg
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52 comments on “Instant Pot Mac and Cheese

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  1. 4 stars
    Olena, I love your recipes, especially for the instant pot. I tried the mac n cheese tonight. Nice and creamy! I used sharp cheddar cheese. It was very mild in flavor. I think a cheese with more flavor might be better. Next time!!

  2. Sounds easy would like to try it but only 2 small eaters to feed. Can I half recipe please? Only 2 cups dry pasta as I don’t want leftovers.
    Thankyou Geraldine

  3. 5 stars
    Hi Olena,
    I made the Mac and Cheese tonight. Pasta was cooked but there was still a lot of water. I let the pasta sit and it thickened up a bit. Still very saucy but the flavour is wonderful! I wonder if whole wheat pasta would absorb more water? Any ideas? Oh, I weighed my pasta, too.

    1. Hmmm, I never had this issue. I find white and whole wheat pasta absorb same amounts. Next time try reduce liquid by 1/2 cup and see if it helps.

      1. Hi Olena,
        Your comment about weighing got me thinking. I do know how to use my weigh scale, but decided to check my liquid measuring cups. I have one American 8 Oz.cup, and one British 10 Oz. cup. I think that was where my problem lay. I’m thinking you use an 8 Oz. measure for the water?
        Thank you.

        1. I use American cups in all my recipes. But oz on a measuring cup are for liquids, not for dry ingredients. It is like twice less amount. If you just take a bowl, place it on a scale, turn it on and add up to 13 oz it all should work. Hope this helps!

    2. This happened to me too! And I think I know why… It’s the amount of pasta, or how I’m measuring it. 13oz pasta came out to abt 1 and 2/3 cups dry pasta. As I was measuring it I already thought to myself that this was too little. Then when I opened the lid it was soup!! So disappointed! The pasta was already overcooked so I wasn’t gonna let it sit on it more so I drained out the liquid, skipped the milk and just added cheese. When I served one adult and one 5 year old, there must’ve been enough for just one more child. So I definitely think it was way too little pasta. I’m hoping you could tell me how much dried pasta measured in cups so I can do this again.

      1. This explains it all. You are measuring pasta wrong. 13 oz dry pasta is about 4 cups. When you use scales in the kitchen, you put a bowl or large measuring cup on it, press ON so display doesn’t include the vessel in calculations and only then add pasta. This should help with your pasta soup issues. Enjoy!

  4. 5 stars
    So easy and good. I did need to slip it into the oven to crisp it up the way I like it but you don’t have to, good right out of the pot. Since I am just cooking for one I use the insert sacking pots and clean up or storage is super simple for any left overs.

  5. 5 stars
    A family favorite and soooo easy!! No stirring over the stove forever. No time for that with little ones. Have made this again and again!!Thank you Olena!

      1. Sorry about the confusion Linda! We have new software for our recipes and sometimes it has been putting both measurements. 1 1/4 cup is equal to 5 ounces of shredded cheese!

  6. I got the 6-quart instant pot like you got now I just got the 8th Court do you have a tutorial on how to clean that one? Thank you

  7. 5 stars
    Another very successful recipe. I did add in frozen kale and spinach powder in the IP to up the nutrients. Easy, fast, nutritious and delicious. My family loved it. Thank you Olena!

  8. 5 stars
    Oh my goodness, this was so delicious! Literally whipped it up in no time. When I’m craving Mac and Cheese, this will be my go to recipe. Thank you for this perfect recipe!

  9. 5 stars
    This is the easiest and most delicious Mac and cheese I have ever made and ever tasted. It was effortless. I don’t think I’ll ever make box Mac and cheese again. This is far superior and takes just about the sane amount of time without having to worry about boiling water!

  10. 5 stars
    Very good. Made it for 4 adults and was told this is a keeper so now bookmarked on my iPad. Thank you for this easy meal.

  11. 5 stars
    Love this Mac and cheese. Light,creamy and love the hot sauce…and I didn’t feel terrible after eating…any tips for easy cleanup? I had it in the instapot for some hours. Thanks

  12. 5 stars
    Easy. Healthy. Delicious.
    When I follow all your recipes EXACTLY how you write them, I can be proud of what I make (finally).

  13. 5 stars
    So freaking easy and super delicious! My go to for mac n cheese- forget Kraft this one is waaaayyyyy easier and tastes so much better!

  14. 4 stars
    This recipe was so simple and the Mac & Cheese so creamy and fabulous. Had enough for left overs for another meal and was jsut as great warmed up.

  15. Do you have a vegan version of this? If not could you make one???..you do such a good job!!

  16. 4 stars
    Made with whole wheat pasta & it turned out good.
    Recipe makes a very large amount of Mac & Cheese!

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