How do you thicken a sauce? (2024)

To add texture to meat juices, you can simmer to allow some water to evaporate before simply whisking in fat to make an emulsion.

You can also add gelatine, which comes from animal collagen and is almost entirely protein. This can come from stock made from boiling chicken scraps. When heated, gelatine’s proteins unravel then interweave, causing the liquid to thicken but not solidify. When cooled, the protein strands line up and twist around each other to create a firm gel.

Wheat flour is commonly used to thicken sauces using a process called starch gelatinisation. The flour grains contain partially crystalline granules of starch, which comprises chains of sugar molecules strung together. The secret to starch’s thickening success is its ability to absorb water and form a gel. Heating breaks the bonds between the starch molecules, freeing them up to bond and trap water.

Many sauces start as a roux, a smooth paste made from equal parts of flour and fat, such as melted butter or oil. To make a roux, heat the fat then stir in the flour. For a nutty flavour, continue to cook the roux until it is golden brown. The fat coats the flour particles, preventing them from clumping together so that the starch is fully available to gelatinise.

Adding liquid while heating causes the starch granules to swell and begin the thickening process. The granules eventually burst open to release starch into the liquid, unleashing more thickening power.Stir the sauce continuously so that the starch doesn’t settle at the bottom of the pan to create a lumpy mess.

For a white sauce with a pouring consistency, try 15g plain flour, 15g fat and 250ml milk. For a thicker sauce, you could increase the amounts of flour and fat to 25g while keeping the milk at 250ml.

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Asked by: Laura Jackson, Norfolk

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How do you thicken a sauce? (2024)

FAQs

How do you thicken a sauce? ›

Make a Slurry: Mix equal parts flour and water or other liquid together. Stir a good amount of the mixture into simmering sauce; cook for a few minutes, then add more until you have your desired consistency.

What are the 4 ways to thicken a sauce or soup? ›

If that's the case, the solution is pretty simple.
  1. Thickening Sauces By Reducing.
  2. Thickening Sauces With Starch.
  3. Thickening Sauces With Egg Yolks.
  4. Thickening Sauces With Purees.
  5. Finishing Sauces With Butter.
Dec 29, 2022

Does water thicken sauce? ›

The water helps loosen any bits of food stuck to the pan and also aids in coating the pasta with all those flavors. One more advantage to using this water is that the leached starch in the cooking water will help thicken the sauce further.

How do you thicken sauce to the right consistency? ›

Use Flour and Water

Combine 2 tablespoons flour with every 1/4 cup cold water and whisk until smooth. Add the mixture to your sauce over medium heat, and continue to stir and cook until you've reached your desired consistency. Test with a spoon.

What causes sauce to thicken? ›

Wheat flour is commonly used to thicken sauces using a process called starch gelatinisation. The flour grains contain partially crystalline granules of starch, which comprises chains of sugar molecules strung together. The secret to starch's thickening success is its ability to absorb water and form a gel.

How to thicken liquid? ›

Soup broths and other flavored liquids can be thickened with household ingredients, such as:
  1. Baby cereal.
  2. Instant potato flakes.
  3. Pureed baby food.
  4. Blended fruit.
  5. Corn flour.
Jan 1, 2018

How to thicken a tomato sauce? ›

Cornstarch: Make a slurry of half water, half cornstarch and whisk until smooth. Cornstarch is a powerful thickener, so start by whisking in no more than 1 tablespoon of the mixture per 2 cups of simmering sauce; stir and simmer for 2 minutes, check the thickness, and repeat with more slurry as needed.

What is commonly used to thicken sauces? ›

Cornstarch. Cornstarch is the most common thickening agent used in the industry. It is mixed with water or juice and boiled to make fillings and to give a glossy semi-clear finish to products. Commercial cornstarch is made by soaking maize in water containing sulphur dioxide.

How to thicken sauce without heat? ›

Instead, make a mixture with equal parts cornflour and cold water and whisk this into your sauce.

What if sauce is too watery? ›

If you're dealing with a stir-fry sauce or gravy that's just a little too runny, make a cornstarch slurry with two parts water and one part starch (adding it directly to your sauce will cause it to clump), then whisk it into your hot sauce, keeping in mind your sauce will further thicken as it cools.

Will sauce thicken the longer you cook it? ›

Letting evaporation cook out water and concentrate your sauce is one of the easiest ways to thicken it, if not the quickest. All you need to do is place your sauce on the stove, adjust the heat and let time do the rest. This is best for sauces which already have a lot of natural body, like tomato sauce and fruit sauce.

Can milk thicken a sauce? ›

Adding milk to a sauce can help it thicken because of the proteins and fats present in the milk. When the sauce is heated, the proteins in the milk coagulate and cause the sauce to thicken. The fat in the milk also contributes to the thickness of the sauce.

How do chefs thicken a sauce? ›

Three Ways to Thicken Sauce (Cornstarch, Roux, Beurre Manie)
  1. A cornstarch slurry will create a thicker consistency, but imparts a glossy sheen that is not always wanted.
  2. A roux can also be used, but making roux takes time and a second pan. ...
  3. Instead, consider a beurre manié.

What are good ways to thicken sauce? ›

Ways To Thicken Sauce
  1. Tomato Paste. If your soup or stew is watery, adding tomato paste may help! ...
  2. Arrowroot. You might prefer to avoid gluten in your recipes. ...
  3. Flour. ...
  4. Reduce Your Liquid. ...
  5. Puréed Vegetables. ...
  6. Egg Yolk. ...
  7. Yogurt. ...
  8. Rice.
Jul 15, 2022

Do you cover a sauce to thicken it? ›

To thicken a soup, stew, or sauce, leaving the lid uncovered is ideal. "It must be off, or semi-covered, if you are slowing down the reduction process," says Stephen Chavez, chef-instructor at the Institute of Culinary Education.

How do you thicken a sauce that is too watery? ›

For a too-thin sauce, try adding a slurry (equal parts flour and water, whisked together) or beurre manie (equal parts softened butter and flour, kneaded together to form a paste)—both are ideal thickeners for rich and creamy sauces, such as steak sauce recipes.

How do you fix sauce that is not thickening? ›

Add about 1 tablespoon of cornflour per cup of sauce but don't dump it straight in or it will clump. Instead, make a mixture with equal parts cornflour and cold water and whisk this into your sauce.

Is it better to thicken with flour or cornstarch? ›

Because cornstarch is pure starch, it has twice the thickening power of flour, which is only part starch. Thus, twice as much flour is needed to achieve the same thickening as cornstarch. To thicken sauces, cornstarch is combined with cold water first, which is called a slurry.

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