How To Use Cornstarch As Thickener


What’s Slurry?

A slurry is a mix of thickening agent and liquid to thicken soups and sauces. In Japan, we use potato starch (we name it katakuriko 片栗粉) to make a slurry. It’s recognized to make a thicker texture than cornstarch could make.

Nevertheless, since cornstarch is simpler to get right here in the USA and usually utilized in Chinese language cooking, you need to use cornstarch instead of potato starch in my recipes.

The liquid for a slurry is commonly water, however generally it may be a mix of condiments or dashi (Japanese inventory).

The advantage of thickening the sauce and soup is to entice all of the scrumptious flavors, and since the thick sauce or soup coats the components nicely, you possibly can get pleasure from them collectively in a single chew whereas a skinny sauce or soup can slip by the components and tougher to stay on the meals.


What’s a Cornstarch Slurry?

Fairly merely, a cornstarch slurry is cornstarch blended with cool water. On this kind, cornstarch may be drizzled into soups and sauces for thickening with none powdery lumps forming.

Make a Cornstarch Slurry:

To make a cornstarch slurry, we typically use a 1:1 ratio of cornstarch to water.

Merely combine 1 tablespoon water and 1 tablespoon cornstarch till the combination is homogenous (you possibly can modify the quantities in keeping with how a lot slurry a dish wants). The cornstarch disperses when it is available in contact with water (notice that the cornstarch disperses reasonably than dissolves. Any such combination, with one substance dispersed into one other, is named a colloid. Science!).

The key to genuine Chinese language stir fries is that straightforward!

The one thing to remember is that cornstarch can s

The one factor to recollect is that cornstarch can settle and separate from the water fairly simply (you possibly can see the way it clings to the bowl within the photograph under), so it’s vital to re-stir your cornstarch slurry proper earlier than utilizing. Simply use a clear finger or chopsticks to loosen and recombine your slurry proper earlier than you add it to meals.

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Different choices

There are quite a lot of choices on the market for soup thickeners, and it’s possible you’ll discover that cornstarch works nice for you, or perhaps it isn’t your preferrred selection.

One factor to bear in mind is that many individuals say that cornstarch isn’t nice for soups that will likely be reheated. It might dissolve if cooked too lengthy, that means it’ll lose its thickening impact if the soup is reheated an excessive amount of, and it will possibly get a wierd considerably spongy texture if frozen.

Nevertheless, that doesn’t imply it isn’t an important choice for sure soups and conditions. Go forward and experiment with totally different slurry recipes and quantities.

Additionally, take a look at arrowroot and tapioca as different thickener choices. There are such a lot of soup thickener choices on the market now, you’re positive to search out one you’re keen on working with and tasting (or not tasting in any respect.) Glad soup making.

Now let’s talk about why you should be using a food mill. Or take a look at this publish on the best indoor grills for burgers.

Use much less thickening for open-faced pies

For a lattice or open-faced pie, use rather less thickening than for a double crust pie, as a result of extra of the liquid will evaporate in the course of the baking course of.

The typical quantity of cornstarch for 4 ounces of fruit is 1 to 2 teaspoons.

2. Add Slurry To Soup

As soon as the corn starch is totally dissolved, slowly pour the slurry into the primary soup pot.

Stir the soup till the slurry is absolutely blended.

By mixing the corn starch slurry with cool water earlier than including it to the soup, you’ll preserve it from clumping when it’s integrated into the new liquid.

Vital! Don’t add dry cornstarch on to the soup as this may trigger clumping.

Making a slurry

A slurry is the semi-liquid form of paste you get while you combine the liquid with small strong issues. In some instances, like in building, it means mixing cement with water to make it simpler to pour. In soup making, it means mixing liquid into the cornstarch earlier than including it on to the soup.

Some individuals use water, some use inventory, some even use wine. You may experiment to see what model of “slurry” you find yourself liking greatest with every soup. It’s an important alternative to strive one thing new and see what sort of new flavors you possibly can carry out of outdated favourite recipes.

To make the slurry, add equal elements cornstarch and water (or wine or inventory) in a bowl and blend them vigorously till you’ve shaped a paste.

For every cup of soup you’re making, combine 1 tablespoon of cornstarch with 1 tablespoon of liquid. That’s about the correct quantity of slurry to thicken your soup, however in fact, this relies largely on private style and the way a lot thickener you want for the recipe.

Attempt experimenting with how a lot thickener you employ. It could be just a little totally different from the flour you’ve used prior to now. Be ready to strive a couple of variations earlier than you’re fully happy.

A tip: ensure that to make use of chilly liquid while you’re making your slurry, then add it to the new soup.

Use Cornstarch

This powder seems fairly just like flour, however it’s not. Lighter in nature I want it over the opposite and purchase it in bulk I exploit it so usually. Somewhat goes a good distance for positive with these items.

Prior to now my mother used to make a roux this fashion. Pouring flour right into a pan on the stovetop after sauteeing greens it created a thick paste. This was used to thicken gravy at Thanksgiving. It labored okay…..

I will admit it wasn’t always smooth and you

I’ll admit it wasn’t all the time clean and also you’d seemingly get a clump of thickener in your chew, it wasn’t fairly.

Now that I create my very own easy Instant Pot recipes, and gravy for the vacations I’ve a distinct methodology. It really works a lot better and is so easy to do. As an alternative of including your thickener in your dish dry, it’s vital to whisk it with some liquid first.

Then while you add it into your recipe and permit it to bubble a bit, your mushroom gravy or sauce(s) will turn into thicker with out these pesky lumps!

How To Thicken Soup With Flour

Cornstarch has twice the thickening energy of flour.

1 tablespoon of corn starch = 2 tablespoons of flour.

When a recipe requires thickening with flour, substitute with half as a lot corn starch.

Whisk one tablespoon of flour in two tablespoons of room temperature water to make a slurry, then stir into the soup because it’s cooking.

Don’t add dry flour on to the soup as it might clump. Simmer for about quarter-hour to cook dinner out the uncooked flour style.

Or, in a separate bowl, simply combine 1-2 tablespoons of flour, with a cup of your soup’s sizzling liquid.

Whisk till all clumps are gone, then slowly add again to your pot whereas stirring.

You may experiment with rice, almond, or coconut flour as nicely.

Or make a roux

What’s a roux?

A roux (pronounced “roo”) can be French and describes a paste created with equal elements flour and fats (melted butter, oil, or lard).

When utilizing a flour slurry you must simmer your soup for some time to cook dinner out that uncooked flour style. Utilizing a roux speeds issues up.

In case you let your roux get actually browned, it provides your soup a toasty taste.

Right here’s easy methods to make a browned roux:

  1. Soften 1 tablespoon of unsalted butter in a skillet.
  2. Add 1 tablespoon of flour. Stir whereas cooking till absolutely integrated and the roux is browned.
  3. Stir the cooled roux into your soup. Deliver to a simmer (uncovered) and cook dinner for at the least 10 minutes.
  4. Modify seasonings as wanted.

Tip: You can too make a roux utilizing corn starch

2. For Thickening Gravies

For gravies in dishes like Chicken Egg Foo Young, a bigger quantity of cornstarch slurry is required.

It’s very vital to continually stir the gravy with a whisk, so no lumps kind. It’s additionally vital to cook dinner the gravy with the added cornstarch till it comes again as much as a simmer earlier than checking the thickness, as the warmth “prompts” the thickening agent.

And keep in mind, sizzling gravy will thicken barely because it cools, so watch out to not add an excessive amount of!

Shrimp with lobster sauce is one other a type of dishes that has a considerable quantity of sauce within the dish. It’s often greatest to thicken sauces earlier than including any remaining components, like egg or scallions, so that they don’t overcook.

Cornstarch Options

One thing to recollect while you’re utilizing cornstarch: In case your sauce is sort of acidic (like perhaps it is tomato-based), the acid will trigger cornstarch to lose a few of its effectiveness as a thickener. In that case, you possibly can substitute arrowroot or tapioca starch. These two alternate options are additionally higher choices if what you are making is one thing you are planning to freeze as a result of cornstarch can tackle a spongy texture when frozen. Conversely, do not use arrowroot to thicken a cream or milk-based sauce as arrowroot mixed with milk generally is a bit slimy.


Cornstarch has 7 grams of carbs per tablespoon, however extra thickening energy than flour, so you possibly can usually use lower than what the recipe requires. Based on cornstarch producers, you solely want half as a lot cornstarch as flour to attain the identical thickening outcomes. In case your recipe solely requires one tablespoon of a thickener, cornstarch generally is a low-carb choice.

How to Substitute Gluten-Free Cornstarch for Flour

Sauces thickened with cornstarch are much less opaque and will likely be glossier than ones with flour. Cornstarch is usually added to chilly water after which to the sauce (whisk or shake in a small container to mix), and also you do not need to fret about cooking it first. Nevertheless, cornstarch can go away meals tasting chalky if undercooked.

Thicken Sauce with Cornstarch

Thickening a sauce with cornstarch is similar to utilizing flour, you simply want totally different portions. You should definitely totally combine the cornstarch and water collectively, then pour into your sauce. Cook dinner and stir over medium warmth till thickened and bubbly. Warmth two minutes extra to be able to fully cook dinner the cornstarch. When utilizing cornstarch as a thickening agent, right here's how a lot you'll want:

  • Use 1 Tbsp. cornstarch blended with 1 Tbsp. chilly water (aka a cornstarch slurry) for every cup of medium-thick sauce.

Check Kitchen Tip: Watch out to not overcook cornstarch-thickened sauces as they will break down when overcooked (the starch loses its thickening properties when cooked too lengthy).

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