cornstarch - enough for your preferred curry texture
Cornstarch is nearly pure refined carbohydrate with minimal nutritional density; it contains negligible protein, fat, fiber, and micronutrients. It is valued for functional properties (thickening and binding) rather than nutritional content.
About
Cornstarch is a fine, powdery carbohydrate extracted from the endosperm of corn (maize) kernels through wet milling. Native to Mesoamerica and now cultivated globally, it is nearly pure starch—approximately 99.5% carbohydrate with minimal protein or fat. The powder is white, tasteless, and odorless, with a distinctive slippery texture when dispersed in liquid. Chemically, cornstarch consists primarily of amylose and amylopectin polymers that gelatinize when heated with moisture, forming a translucent, viscous gel.
Cornstarch is distinct from cornmeal or corn flour, which retain the germ and bran; cornstarch is refined to pure starch alone. It produces clear rather than opaque thickening and does not impart corn flavor, making it ideal for applications where transparency and neutral taste are essential.
Culinary Uses
Cornstarch serves primarily as a thickening and binding agent across global cuisines. In Asian cooking, it is essential for creating silken sauces in stir-fries, curries, and gravies; a slurry (cornstarch mixed with cold liquid) is added near the end of cooking to achieve desired consistency without cloudiness. In Western baking and pastry, it is combined with flour to produce tender cakes, biscuits, and pie fillings by inhibiting gluten development. It also functions as a coating for fried foods, providing crispness, and as a dusting agent to prevent sticking. In custards, puddings, and sauces, cornstarch stabilizes emulsions and prevents separation during storage and reheating.