How To Thicken Alfredo Sauce Without Spending Over $10

Fettucine Alfredo is one of the most popular pasta dishes all over the world. A lot of people love how creamy it is that they can not really get over the taste. No wonder why there are so many of them who try to learn how to do their own Fettuccine Alfredo at home.


Well, while there are ready-to-eat Fettuccine Alfredo that you can just easily heat in the microwave available, many are still looking forward how to properly cook and prepare the traditional Fettuccine Alfredo.

​While cooking pasta seems easy, it is actually a lot more difficult than other dishes. Many Fettucine Alfredo fans complain about not being able to do their Alfredo sauce right no matter how many times they have already tried.
Thickening the sauce is definitely the most difficult part of the recipe.

 This is why we have prepared a few tips for all those Fettucine Alfredo fans to follow. With the simple strategies that will be discussed in this article, preparing Fettuccine Alfredo at home will no longer be a difficult task for you.

Using a Starch Slurry

Whether it is thickening Alfredo sauce or any other kind of sauce, a starch slurry will always be helpful. Starch has this property that helps cook thicken their sauce successfully in no time.

Follow the steps below and make your Alfredo sauce the best pasta sauce with the right thickness and creaminess.

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    Choosing starch
    The very first thing you need to do is to choose the kind of starch you will use for making a starch slurry for thickening your Alfredo sauce. Consider all the variables when selecting the starch to use as it could alter not just the texture, but also the taste of the sauce. Among the starches you can use for this purpose are cornstarch, arrowroot, rice flour, potato flour, and tapioca flour.
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    Measuring starch
    Know how much starch you need for your sauce. Normally, it is one tablespoon for every cup of Alfredo sauce.
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    Mixing with water
    Add one tablespoon of water for every tablespoon of your chosen starch. Mix them well until there is no lump and the mixture is fully smooth.
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    Mixing the slurry and sauce
    Add the starch slurry into the Alfredo sauce being cooked in a medium to medium-high heat on a skillet until the mixture thickens.
  • Incorporating the slurry
    Once the mixture has completely thickened, continue to whisk the sauce for one or two more minutes to make sure the starch slurry is fully incorporated to the sauce.
  • Checking the taste
    Add more seasoning if necessary. Since the starch slurry might have an effect to the taste of the sauce, it is best to try it after mixing and season the thickened sauce accordingly. You can use the best pepper mill to manage how much pepper should go to the prepared Fettuccine Alfredo.
    As much as possible, try to avoid starches with strong taste as these are the ones that dilute the sauce’s taste especially when you want to have the traditional Fettuccine Alfredo pasta taste. Also, try to be faithful to the recommended measurement of starches and water to avoid the possibility of making your sauce sour.

Using Food Gums

One of the best ways to thicken your Alfredo sauce is to use food gums. Unlike most starches, these do not dilute the color nor the taste of the sauce. Thus, if you are not a fan of altering sauce’s taste, it is a lot better to stick to this strategy. To thicken Alfredo sauce using food gums, follow the steps indicated below:

1. Selecting food gums

Just like starches, there are different kinds of food gums. Thus, you need to choose which food gum to use before anything else. Among the food gums you can use for thickening Alfredo sauce are

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    xanthan gum
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    guar gum
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Know the different properties of each food gum to choose the one that fits to your own preference.

2. Mixing food gums

There are different step two’s for different kinds of food gums. Let us start with agar and guar gum first since both of these need to be added to liquids first.

If you choose agar powder, use a teaspoon of it for every cup of Alfredo sauce. If you choose agar flakes, use a tablespoon of it for every cup of Alfredo sauce. Mix the agar with four cups of warm water for every teaspoon of agar powder or tablespoon of agar flakes. Mix them well by boiling them for five to ten minutes. Then, mix it to the Alfredo sauce.

If you choose guar gum, you would only need ½ teaspoon of it for every cup of Alfredo sauce. Blend it with oil incorporated to Alfredo sauce before bringing in all other ingredients.

On the other hand, you do not need to mix any liquid to xanthan gum or pectin. You can add them directly to the Alfredo sauce at least 15 minutes before the sauce gets completely cooked. Xanthan gum will thicken the sauce even without reaching the boiling point. However, pectin needs to boil before it can effectively thicken the sauce.

Use only two tablespoons of pectin for every cup of Alfredo sauce. Use only between 0.1 and one percent xanthan gum mixture depending on your preference.

Using Beurre Manie:

Beurre Manie is the French term for kneaded butter. To complete the instruction of using butter for thickening Alfredo sauce, check the three simple steps stated below:


Knead the butter and flour together with the use of your fingers or a fork until a smooth dough or paste is formed.

2. Making paste/dough balls or squares

Roll the smoothened dough or the paste into teaspoon-sized balls or just cut them into squares using a knife.

3. Adding balls/squares to the sauce

Add the teaspoon-sized balls or squares one at a time into the Alfredo sauce. Allow the Alfredo sauce to simmer for one or more minute for every beurre manie ball/square you add. Do not stop adding the balls until you reach the consistency or thickness you prefer. On the other hand, do not put the balls/squares together at once or else, you might overdo the thickening process.

A lot of creamy Fettuccine Alfredo fans love using Beurre Manie to thicken its sauce since it does not just thicken the sauce, but also make it a lot creamier than the usual. However, not all people love the effect of using butter for thickening. Thus, it all boils down to everyone’s own preference.


Have you decided about which strategy to use for thickening your favorite Fettuccine Alfredo sauce? If yes, then feel free to comment which one you like the best and why do you prefer it over the other strategies in this article.

 If you need kitchen tools and utensils, such as masticating juicers, skillets, and the likes, be sure to get the best ones as tools you use also define the presentation of the food you are preparing. It also affects your mood while cooking.

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Jenny Hopper

My name is Jenny Hopper, I'm a mother of two cute little kids. To tell you, blogging isn't an easy task. But for me, I feel rewarded for doing the things that I love and one is sharing my experiences with the world and with you. And I definitely welcome any helpful and sincere contribution from you.

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