Instant Pot Alfredo Sauce with Fettuccine [Video]

Catalina Castravet
By Catalina Castravet
5 from 9 reviews

Instant Pot Recipes Main Dishes Pasta

Cook time Cook time: 5 minutes

Instant Pot Alfredo Sauce is so easy to make, all you have to do is add all the ingredients to the pot, including the dry pasta and cook to perfection. This is the perfect dump and cook meal.

Instant Pot pasta recipes are a dinner favorite around here, they are easy to make, no fuss dishes, that are perfect for busy weeknight dinners. Instant Pot Alfredo Sauce Pasta is the latest addition to the collection. Among readers’ favorites are the famous Tuscan Chicken Pasta, Instant Pot Chicken Pot Pie Pasta, and the cheesy Cheeseburger Macaroni.

Instant Pot Alfredo Sauce with Fettuccine Noodles

Instant Pot Alfredo Sauce with fettuccine is one of the easiest recipes you can make in your pot. This recipe is perfect for busy weeknights when you need to make dinner in just under 30 minutes or less. To make a creamy pressure cooker alfredo sauce with fettuccine noodles, all you have to do is add all the ingredients to the pot and cook.

What I like about this recipe, like other Instant Pot pasta recipes on this blog, you don’t have to pre-cook the pasta. Also, it a one-pot meal, with minimum effort and budget-friendly ingredients.

My secret ingredient to the most luxurious Alfredo sauce is adding a cup of mascarpone cheese. The result is a creamy and rich sauce, that tastes like it was made at a fancy Italian restaurant.

How long do you cook pasta in the Instant Pot?

Depending on the recipe and the pasta you are using, also taking into consideration the doneness of the pasta, you have to cook it for 4-6 minutes. Also, most of the time followed by a Quick Pressure Release.

What is Alfredo Sauce?

A white sauce, usually made from butter, heavy cream and minced garlic. This sauce is most often served on fettuccine noodles with freshly grated parmesan cheese.

What does Alfredo Sauce taste like?

Alfredo sauce is thick, rich and creamy. It has a subtle garlic flavor, sweetness from the heavy cream and lots of flavor from the dried herbs.

What can I use instead of heavy cream for Alfredo sauce?

To replace heavy cream in Alfredo sauce, you can use whole milk, half and half or evaporated milk.

Recipe Tips and Tricks:

  • Chicken broth can be substituted with veggie broth, for a vegetarian version.
  • In addition, heavy whipping cream can be substituted with whole milk or evaporated milk.
  • For a richer sauce, use heavy whipping cream instead of evaporated milk.
  • Also, you don’t have to pre-cook the noodles for this recipe.
  • This meal can be made with other types of pasta, I like to use large shells or fusilli pasta.
  • The mushrooms can be skipped if not a fan.
  • Instant Pot – I have the 6 quarts one. It makes weeknight meals so much easier.

Can I add chicken to this recipe?

Yes, you can. Adding chicken to it will give some extra flavor and richness to the dish. To do so, cut a chicken breast into 1-inch cubes and add to the pot. Cooking time stays the same.

How do you reheat the Instant Pot Alfredo Sauce Fettuccine on the stove?

  • Usually, when refrigerated the sauce will thicken and the pasta will also absorb more of the liquid.
  • To reheat, add pasta to a medium-large saucepan over medium heat and add 1/2 to 1 cup of milk. Start with 1/2 cup, stir to combine and if needed add more, until you achieve the desired sauce consistency.
  • You can also add cream instead of milk, or chicken broth.

Watch recipe step-by-step video:

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5 from 9 reviews

Easy Instant Pot Alfredo Sauce with Fettuccine

Instant Pot Alfredo Sauce is so easy to make, all you have to do is add all the ingredients to the pot, including the dry pasta and cook to perfection. This is the perfect dump and cook meal.

Author: Catalina Castravet Serves: 4 servings
Prep time: 10 minutes Cook time: 5 minutes Total time: 15 mins


Cornstarch Slurry:



Cornstarch Slurry:

Nutrition information

Calories: 831 Carbohydrates: 78 Protein: 44 Fat: 37 Saturated Fat: 21 Cholesterol: 137 Sodium: 981 Potassium: 983 Fiber: 2 Sugar: 11 Vitamin A: 1150 Vitamin C: 2.6 Calcium: 782 Iron: 4.9
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We love pasta over here and that looks so enticing. Thank you for the recipe. It's going to be on the menu next week.



I love what you can do out of an instant pot! I have to try this!



Is the mascarpone cheese a requirement? If I left it out would it make a huge difference? This looks really good by the way!


it won't be as rich and thick, that is the difference.



Any recommendations if the noodles did stick together? ? I thought I separated them enough but they bunched together. 


Ugh sorry if they stuck together there is not much you can do, you can try the recipe with shells or fusilli pasta, its much easier to cook using those.



If I want to make a pound of pasta, does every ingredient, double too? This looks so yummy!


I would not recommend using so many noodles, they are hard to work with in the IP, they may stick, if you want to do a lb, use shells, or some other small pasta. Doubling should work.


Kim Brewer

This looks so quick and yummy!! Can you substitute the evaporated milk and mascarpone cheese with anything else?


cream and cream cheese :)



Is the italian seasoning mix, the dry seasoning in the packet or is it the actual dried herbs that you can buy in the spice isle?


the dried herbs


Heba Root

To add chicken, should they be sauteed first?


preferably yes.


Lesa Cannon

A newbie here, but, all other recipes I've seen say to put in the milk products after the heating process is over, or it will curdle. But I wonder about this recipe? Tell me it works, I love alfredo!


It works :) check the video to see how nicely it works :) also I use evaporated milk NOT regular milk.



Will this recipe work if I make the noodles separate? This looks so good! 


Honestly if you plan on cooking the noodles separately I really don't see the point of cooking the rest in the IP, as it would not take longer on the stove. The noodles also absorb the liquid, so omitting them will change the recipe and I am not sure how it will work.


Karen Kantor

Is it possible to use whole wheat pasta? If you can, is the cooking time the same?


probably 2 more minutes longer


Brian Cote

Can't find on here if it says how many people this should feed?


Hi Brian, thanks for visiting. If you look at the recipe, you can find the serving size and the nutritional information. This should satisfy about 4 servings. Hope, this answers your questions.


Deborah Marks

I have two instapots! a 6 quart and just bought an 8 qt! I love it ! has changed my life I love cooking again! Deb Marks


Tara Michiels

I've made this in the instant pot and on the stove. I needed to make more than the instant pot could hold for a party I was hosting. It turned out beautifully on the stove, tasted just as delicious, but didn't thicken as much...still was great!


Happy that you liked it!


Kelly Weekly

Made this recipe last night with a few substitutions. I didn't have fettuccine noodles so I used Penne Pasta. I added chicken (raw & cubed). I did not have Mascarpone cheese so substituted by blending cream cheese with 1/4 c butter. My husband and son (both picky eaters) absolutely loved this recipe and it was really easy to make in the IP. Thank you! We'll be adding this to our rotation for dinner.


Hi Kelly, I am happy that you enjoyed this easy recipe!


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