How Do You Make Spaghetti Sauce Less Watery?

There’s nothing more disappointing than serving up a plate of spaghetti only to find that the sauce is too watery. Luckily, there are several simple methods you can use to thicken up your spaghetti sauce and make it more flavorful. In this article, we’ll explore these techniques and help you achieve the perfect consistency for your sauce.

1. Simmer it

If your spaghetti sauce is too watery, one of the easiest ways to thicken it is by simmering it for a longer period of time. This allows some of the liquid to evaporate, resulting in a thicker sauce.

To do this, simply bring your sauce to a gentle boil and then reduce the heat to low. Let it simmer uncovered for at least 30 minutes, stirring occasionally.

2. Add tomato paste

An effective way to thicken spaghetti sauce is by adding tomato paste. Tomato paste has a concentrated flavor and thick consistency that will help reduce the watery texture of your sauce. Start by adding a tablespoon of tomato paste at a time, stirring well after each addition until you achieve your desired thickness.

3. Use cornstarch or flour

Cornstarch or flour can also be used as thickening agents for spaghetti sauce. To use cornstarch, mix one tablespoon with an equal amount of cold water to create a slurry.

Add the slurry to your sauce and simmer for a few minutes until it thickens. If you prefer using flour, create a roux by melting butter in a separate pan and whisking in an equal amount of flour until smooth. Gradually add the roux to your sauce, stirring constantly until it thickens.

4. Incorporate grated cheese

Adding grated cheese to your spaghetti sauce not only enhances its flavor but also helps thicken it. Parmesan or Romano cheese work best for this purpose.

Start by adding a small amount of grated cheese to your sauce and stir until it melts. Continue to add more cheese gradually until you achieve the desired thickness and taste.

5. Use breadcrumbs

If you’re looking for a gluten-free alternative to thicken your spaghetti sauce, breadcrumbs can be a great option. Simply sprinkle some breadcrumbs into your sauce and stir well. The breadcrumbs will absorb excess liquid and give your sauce a thicker consistency.

6. Puree vegetables

If you prefer a healthier option, pureeing vegetables can be an excellent way to thicken your spaghetti sauce while adding extra nutrients. Cook vegetables like carrots, bell peppers, or zucchini until soft, then blend them into a smooth puree using a blender or food processor. Add the puree to your sauce and simmer for a few minutes to allow the flavors to meld together.


Thickening up watery spaghetti sauce is easier than you might think. Whether you choose to simmer it down, add tomato paste or cornstarch, incorporate grated cheese or breadcrumbs, or even puree some vegetables, these techniques will help you achieve the perfect consistency and flavor for your spaghetti sauce.

Experiment with these methods to find the one that works best for you and don’t be afraid to get creative with additional spices and herbs for an even more delicious outcome!