cornstarch mixed with 6 tablespoons vegetable stock

GrainsYear-round

Cornstarch is primarily carbohydrate with negligible protein, fat, or fiber. It provides quick energy but lacks significant micronutrients compared to whole grains.

About

Cornstarch is a fine, white powder extracted from the endosperm of corn kernels (Zea mays). It is produced by milling dried corn and separating the starchy component from other parts of the grain. Cornstarch is nearly pure amylose and amylopectin polysaccharides with minimal protein, fat, or fiber. When mixed with liquid, it forms a slurry that thickens upon heating, becoming a crucial thickening agent in sauces, gravies, and desserts across global cuisines.

Culinary Uses

Cornstarch is primarily used as a thickening agent in sauces, gravies, puddings, and glazes. When mixed with cold liquid (a slurry), it prevents lumping before incorporation into hot preparations. A cornstarch-vegetable stock mixture functions as a binding agent that creates a smooth, glossy finish to dishes. This preparation is particularly common in Asian cuisines for creating silky pan sauces and in French cooking for liaison-style thickening. The ratio of 1 tablespoon cornstarch to 2 tablespoons stock creates a standard beurre manié-style consistency suitable for finishing sauces.

Forms & Preparations

  • Powder — Fine white powder used dry or as a slurry; the standard commercial form available for thickening applications.
  • Slurry — Cornstarch mixed with cold liquid before addition to hot preparations; prevents lumping and ensures smooth incorporation.
  • Cornflour — Regional term (UK/Australia) for the same product; sometimes used interchangeably though cornflour may refer to finely ground cornmeal in some contexts.
  • Cornstarch paste — Cornstarch mixed with cold stock as described; creates a workable paste consistency for easy stirring into sauces.

Substitutes

  • Unknown — Use in equal quantity; creates a more translucent thickening with a less starchy taste. Ideal for delicate sauces and fruit preparations.
  • Unknown — Use in equal quantity; similar thickening power but creates a more opaque result. Works well in Asian cuisines and gravies.
  • Unknown — Use in equal quantity; produces a glossy, translucent finish but may become stringy if overworked; best for sauces served immediately.
  • Unknown — Use 1.5 times the cornstarch amount; creates a slightly grainy texture and is less neutral in flavor; suitable for Asian-style sauces.
  • Unknown — Use 1.5 times the cornstarch amount; requires cooking out raw flavor (make a roux first); produces more opaque results suitable for gravies.