How to Thicken Spaghetti Sauce

Consistency of your sauce is of utmost importance when creating a delicious spaghetti dish, yet finding it can sometimes be challenging. There are various methods available to thickening it – including adding starches and liquid, as well as other ingredients – as well as various ways of thickening.

One easy way to thicken your sauce is to save some of the water used when boiling your noodles and add it back in as needed – particularly useful if the sauce has become too watery.


Cornstarch is an essential thickening ingredient, perfect for creating sauces, soups and gravies. Available as either powder or liquid form, cornstarch can replace flour in recipes calling for thickening. Cornstarch works like flour by expanding as it heats, absorbing liquid, and creating a thick texture in your dish. To use cornstarch effectively, combine equal parts of cold water with cornstarch in order to form a slurry and whisk into your hot liquid that needs thickening. Be careful not to overcook, as this can result in lumps in your dish. Other starch thickeners that may replace cornstarch include tapioca and arrowroot; pectin found naturally in fruits and vegetables can also be added towards the end of cooking as an additional thickener; otherwise it will thin the liquid too quickly and cause overthickening.

Add grated cheese as another simple way to thicken your spaghetti sauce for maximum thickness and delicious flavor! Just be wary that too much cheese could alter its overall taste!

Pasta water, mashed potatoes and breadcrumbs can also be used to thicken spaghetti sauce quickly and efficiently. Pasta water contains plenty of starches that are great for thickening runny sauces, while mashed potatoes offer another source of starch which acts like cornstarch when adding volume to various recipes. Meanwhile, breadcrumbs act like natural sponges by absorbing excess liquid. Lastly, another quick way of thickening spaghetti sauce quickly is adding tomato paste, which both thickens your sauce instantly as well as amplifying tomato flavors further.

Mashed potatoes

Although it might sound surprising, mashed potatoes are an effective natural starch that can thicken sauce without altering its flavor. All it takes to use this trick is using either fresh or boiled potatoes and mashing them thoroughly before adding it to simmering sauce – the potatoes will add texture as well as thicken your sauce! They’re also an effective way of adding depth if your spaghetti sauce is overly salty.

Breadcrumbs can also be an effective way to thicken spaghetti sauce, whether made from stale bread or fresh bread; their sponge-like properties will soak up extra liquid like a sponge, so make sure that after adding them they’re mixed well as they may tend to clump together and may need stirring thoroughly after. Keep in mind though, that breadcrumbs may contain gluten so if you have wheat allergies they might not be the ideal way.

There are various techniques and approaches for thickening sauce, each offering their own benefits and drawbacks. Understanding their operation allows you to select one best suited to your recipe and preferences. Some common thickening techniques include cornstarch, flour, roux or starchy vegetables as well as simmering down liquid until it evaporates off of the sauce surface.

Thickening spaghetti sauce may seem daunting at first, but with practice you will soon create an amazing family meal! Remember to taste as your sauce thickens to adjust flavor and consistency if necessary – by following these steps you will have no difficulty crafting delicious spaghetti sauce every time!


Watery spaghetti sauce can be both disappointing and inedible, leaving no trace of flavor on your noodles or in your mouth. Luckily, there are multiple ways to thicken spaghetti sauce to your desired consistency: some easy ways include simmering longer or adding certain ingredients; other techniques include cornstarch slurrying, mixing flour into the sauce base, creating a roux, adding tomato paste or vegetable oil or butter and pureeing vegetables as desired.

Why is my spaghetti sauce too watery? -The main cause may be too much liquid being added or that the tomatoes did not cook down enough; if using canned tomatoes it’s best to drain them first before adding to the pot. Additionally, adding too many vegetables can also release moisture, contributing to an overly moist sauce.

Mashed potatoes can be an easy and efficient way to thicken spaghetti sauce. Simply mash up some boiled potatoes and incorporate them into the simmering spaghetti sauce – this will both thicken it and add extra flavor!

Cheese can help thicken spaghetti sauce quickly and add both flavor and creaminess, with mozzarella or parmesan being ideal choices here; other cheese varieties may work just as well, however. Plus, pasta’s starch helps thicken and absorb excess moisture at once!


Watery spaghetti sauce that runs off the noodles into the bottom of your bowl is sure to disappoint your family, but don’t fret: there are still ways you can thicken it and still get dinner on the table on time – from cutting back on liquid use, to thickening agents such as tomato paste or flour, this means your soupy mess can become something filling and delicious!

One of the easiest and quickest ways to thicken spaghetti sauce is by simmering it longer, allowing excess moisture to evaporate and giving your sauce a thicker consistency. Plus, simmering is also a great way to add additional flavors and richness!

Add meat as another easy way to thicken spaghetti sauce and boost its nutritional value; beef, chicken and pork all make excellent additions for adding additional texture and protein.

If you don’t have any meat on hand, vegetable scraps such as onion and carrot peelings may also work to thicken up your sauce without changing its taste.

Fresh tomatoes can help thicken a sauce quickly during summer, when vine-ripened varieties are plentiful. Shredded cheese also adds thickness and richness while heightening overall flavor of any dish, while egg yolks may work to thicken things up even faster! To use egg yolks for thickening your spaghetti sauce quickly simply whip them separately first!


Thickening spaghetti sauce involves many methods, from simmering it longer to using ingredients like cornstarch or flour. Some methods may be more successful at reducing liquid content than others, while altering flavor or texture as a side effect; so when selecting one or more techniques it is important to do your research first and use one that best meets your situation.

One of the easiest and natural ways to thicken spaghetti sauce is to simmer it longer, allowing its liquid content to evaporate away, creating thicker sauce. An alternative method would be adding proteins like ground meats or pureed vegetables as this adds another layer of fat which slows the evaporation rate of liquid from the sauce.

Cheese can also help thicken sauce quickly. Grated parmesan or Romano cheese can be added directly into your sauce without altering its taste, creating an effective fast thickening method. While simmering or adding starch may work more quickly, cheese is still useful if you need your sauce thickened quickly.

If your sauce is too watery, the culprit may be insufficient starch content in it. Starches can be found in pasta water, cornstarch slurry, mashed potatoes or breadcrumbs – vegetable oil or butter may help thickening efforts as these natural thickeners provide another option to artificial thickeners used for culinary creations.

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