How to Reheat Alfredo Sauce and Avoid Separation

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Last updated on June 13, 2022


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Alfredo sauce is a rich white sauce made with butter, cream, and Parmesan cheese. It is often served over pasta, as a topping for vegetables, or as a dipping sauce for bread.

It's not meant to be kept for too long, as it begins to harden at room temperature.

But what happens if you have leftover sauce? Is there anything you can do to reheat it so it tastes the same as it did when you first made it?

The answer is, yes! Reheating alfredo sauce is a simple process that can be done in the oven, microwave, or stove.

Here we take a look at the best ways to reheat fettuccine alfredo.


3 best ways to reheat alfredo sauce infographic

How to Reheat Alfredo Sauce without Separation

Many people like to enjoy this sauce without having to worry about it separating. There are a few ways that you can reheat Alfredo sauce and avoid separation.

The first way is to reheat the sauce in the oven on low heat until it becomes hot, but make sure not to let it boil.

The second way is to heat the sauce in the microwave.

And the third way is to heat the sauce in a pan over low heat.

All of these methods will be further outlined below.  

Reheating Fettuccine Alfredo In The Oven


A simple way to reheat fettuccine alfredo is to heat it in the oven. To do this, start by preheating your oven to 350°F. Pour the pasta with the sauce in an oven-safe dish and allow it to heat for about 15 minutes.

This method works quite well when you want to reheat leftover pasta.

Once the sauce is heated, remove it from the oven, transfer it to a serving bowl, and top it with shredded Parmesan cheese.

While the sauce is in the oven, you can also heat up some breadsticks or garlic bread to go along with your pasta. You can even make a green salad for added freshness.

Reheating Fettuccine Alfredo on the Stove

Alfredo pasta with cheese

It can be difficult to reheat Alfredo sauce on a stove because it can become watery and oily. That's why it's important to work with low heat when using this reheating method.

A double boiler is ideal for reheating Alfredo sauce on a stove because it allows the sauce to heat slowly and evenly, and keeps the level of water very low.

If you have a double broiler, place it on low heat and add the desired amount of water. Bring the water to a simmer and place the saucepan with the Alfredo sauce over the simmering water. 

If you do not have a double broiler, heat on VERY LOW heat in a sauce pan. Continually stir to keep the temperature consistent throughout the sauce. DO NOT BOIL 🙂 Bring to a temperature slightly above your ideal serving temperature and then turn off the heat. 

Again, just make sure you do not allow it to boil. Stir occasionally, but be careful not to overheat it. 

Reheating Fettuccine Alfredo in the Microwave


If you're looking for a quick and easy way to reheat your Alfredo sauce, the microwave is a great option.

Simply place the sauce in a microwave-safe bowl, cover with plastic wrap, and microwave on high in two or three intervals for about 30 seconds each, or until the sauce has heated through. 

If you go over 30 minutes, you run the risk of overheating the sauce and causing separation. Keep a close eye and don't overheat. 

Can you Freeze Alfredo Sauce?

Yes, you can freeze Alfredo sauce. However, it is not recommended to do so because the quality of the sauce may not be as good as when it was first made.

This is because freezing changes its texture, and reheating it can cause it to become diluted and greasy.

To freeze, place the sauce in an airtight container or plastic bag and freeze it for up to three months.

When you want to use it, thaw the sauce overnight in the refrigerator before reheating it on the stove or microwave.

You can also freeze it into individual 'ice cube' portions so that you have individual pieces that are ready to reheat at a moment's notice.

How Long does Alfredo Sauce Last in the Fridge?

Alfredo sauce will usually last in the fridge for about three to four days. However, it is always best to use it as soon as possible for the best quality and flavor.

If the sauce separates after you take it out of the fridge, simply whisk it together before reheating it. This will ensure that your sauce is smooth and creamy when you reheat and serve it. 


Reheating fettuccine alfredo is a fairly quick and simple process. As we've shown in this article, you can reheat the sauce in the oven, on a stove, or even in the microwave to ensure that it remains creamy and smooth for a satisfying leftover dish. 

All of these methods will allow your pasta to be ready for consumption within ten minutes or less!

Let us know if you have comments or further questions. We would love to hear from you.



Founder of Robust Kitchen 

About the author, Michael

Michael spends his days eating, drinking and studying the fascinating world of food. He received his Bachelors Degree in Food Science and Technology at the University of California, Davis and spent much of his time at the school brewery. While school proved to be an invaluable experience, his true passion lies in exposing the hidden crannies of food for the cooking laymen.