tbs. cornstarch

GrainsYear-round

Cornstarch is nearly pure carbohydrate with minimal protein, fat, or fiber. It provides quick-absorbing carbohydrates but lacks significant vitamins and minerals compared to whole corn products.

About

Cornstarch is a fine, white, powdered starch extracted from the endosperm of corn (maize) kernels. The starch is isolated through a wet milling process that separates the starch granules from the protein, fat, and fiber components of the kernel. Cornstarch is virtually flavorless and consists almost entirely of amylopectin, a branched polymer of glucose, which accounts for its distinctive thickening properties. It is distinct from cornmeal or corn flour, which retain more of the corn kernel's nutritional components and have coarser textures.

Culinary Uses

Cornstarch is primarily used as a thickening agent in sauces, gravies, puddings, soups, and desserts. It creates a clear, glossy finish when cooked, making it particularly valued in Asian cuisine for stir-fries and velveting meat, as well as in pie fillings, custards, and baked goods. When combined with liquid and heated, cornstarch gelatinizes and absorbs moisture, creating a smooth, silky texture. It is also employed as a dusting powder for preventing sticking in dough preparation and as a batter ingredient for frying. Cornstarch is preferred over flour in applications where opacity must be avoided and a neutral flavor is essential.

Forms & Preparations

Powder — Fine, white, free-flowing powder; the standard form used directly in cooking for thickening sauces and batters.
Slurry — Cornstarch mixed with cold liquid (water, stock, or juice) before addition to hot liquids to prevent lumping and ensure smooth dispersion.
Dusting powder — Applied directly to surfaces to prevent sticking in dough handling, tray lining, or food preparation.
Batter component — Mixed into dry flour blends for fried foods to create a lighter, crispier coating.
Modified cornstarch — Chemically altered starch used in commercial products for improved thickening stability and freeze-thaw resistance; less common in home cooking.

Substitutes

Unknown — Use in equal ratio as a 1:1 substitute; creates a more transparent thickener and works well in acidic sauces. Best for delicate applications like puddings.
Unknown — Use in equal ratio as a 1:1 substitute; produces a silky texture similar to cornstarch but works particularly well in Asian cuisine and frying batters.
Unknown — Use in equal ratio as a 1:1 substitute; creates a glossy finish and is preferred in some Asian and Brazilian dishes; can be slightly stringy if overcooked.
Unknown — Use approximately 2 tablespoons flour for every 1 tablespoon cornstarch; produces an opaque result and adds subtle flavor, suitable for gravies and cream sauces.
Unknown — Use in equal ratio; allows for longer standing time before serving; creates a slightly different texture with visible pearls in clear liquids.