6 Greatest Ways to Thicken Pesto Sauce Explained!

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If there is one thing that is critical to pesto sauce, it is its consistency. Of course, the most essential factor is whether or not the pesto tastes nice, but if you want to call it pesto, it must also be quite thick. Thus, if your pesto has become too thin, use this simple tip to thicken it again:

What is the best way to thicken pesto sauce? Adding a little cornstarch to pesto sauce is a traditional technique to thicken it. Cornstarch is a well-known thickener, owing to its relatively neutral flavor. When making pesto sauce using cornstarch, never add the cornstarch straight away; instead, combine it with water first. In addition, when combining the pesto with the cornstarch, it should be gently heated.

But, this was a very brief response, and in order to really comprehend this subject, we will need to go a little further.

Now, without further ado, let’s get this party started!

Pesto sauce thickening

Creating pesto sauce at home might be difficult, particularly if you’re doing it for the first time. Consistency is one of the most difficult aspects to master since it is dependent on so many variables. With that in mind, altering the consistency isn’t all that difficult, even after you’ve completed preparing the pesto. So here are our six recommendations:

Cornstarch should be added.

Mixing cornstarch with anything is likely the most frequent technique to thicken things, and this is a possibility even with pesto sauce. But, in order to avoid clumping, the cornstarch should be mixed with water first (vegetable broth can be used instead for better taste).

Following that, begin heating the pesto sauce and, after a few minutes, gently pour the water-cornstarch combination into the pesto and carefully mix it in. Let it to slowly simmer for another few minutes, and you’re done!

Mix in the breadcrumbs

If you don’t like cornstarch, the only other conventional thickening that works well with pesto is breadcrumbs. To thicken the pesto with them, start heating the pesto again, but this time you won’t have to mix the breadcrumbs with water before adding them to the pesto.

Include cheese.

Nevertheless, although both breadcrumbs and cornstarch do an amazing job of thickening the pesto, they do not belong in there and may affect the final flavor somewhat. As a result, if you’re preparing creamy pesto, consider adding a small amount of cheese to thicken your pesto sauce.

Pour in some pasta water.

If you’re preparing pesto, you’re probably also making pasta, and believe it or not, the pasta water may be used to thicken pesto sauce. While it’s still hot, gently pour a little bit of it into the pesto and stir it in. Rep till the boiling salty water thickens your pesto!

Mix with some pine nuts

Did you know that adding extra pine nuts to your pesto sauce helps thicken it? It may seem easy, but just combine the pesto and the nuts in a food processor and pulse until completely combined. If you used the appropriate number of pine nuts, your pesto should now be rather thick!

Add more basil if desired.

The final item we’ll suggest is perhaps the easiest way to thicken your pesto sauce; you can also try using basil leaves instead of pine nuts. Again, just combine the pesto and the leaves in a food processor and pulse until the leaves are evenly distributed. Then, continue until you are happy with the final consistency.

Is pesto supposed to be thick?

The specific explanation varies on the kind of pesto sauce being discussed, but in general, pesto should be thick. The key reason for this is that pesto should have a lot of concentrated flavor in it, and maintaining that requires a thick consistency.

Commonly Asked Questions

What is the best way to thicken pesto cream sauce?

One of the most adequate and easy methods to thicken pesto cream sauce is to add a little amount of cheese; believe us, this will not only make it thicker but also lot more tasty!

How do you thicken pesto sauce?

Believe it or not, a little amount of additional basil leaves may be enough to thicken pesto sauce. Just add the leaves to the sauce and pulse in a food processor until well combined. Examine the consistency, and if it’s still too thin, continue the process until you’re happy.

What is the best way to thicken creamy pesto sauce?

Did you realize that you simply don’t need anything else but cheese to thicken creamy pesto sauce? Actually, as easy as it may seem, the easiest method to thicken creamy pesto sauce is to add some cheese to it.

What is the best way to thicken Knorr pesto sauce?

There are many methods to thicken knorr pesto sauce, one of them is to use cornstarch. To do so, first combine the cornstarch and water, and then add this combination to the sauce. Remember to keep the pesto warm while mixing in the cornstarch!


Although while pesto sauce may be thickened with things like cornstarch or breadcrumbs, we don’t encourage it since there are many more natural options. For example, while preparing a creamy pesto, add some additional cheese, or when making a basic pesto, add some extra basil leaves.

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