about ½ cup water

Water is a simple inorganic compound (H₂O) composed of hydrogen and oxygen, occurring naturally as the universal solvent on Earth. In culinary contexts, potable water serves as the fundamental medium for cooking, hydrating, dissolving, and extracting flavors from other ingredients. Water's neutral pH, thermal properties, and ability to conduct heat make it indispensable in the kitchen. The mineral content of water varies by geographical source and can subtly influence the outcome of recipes, particularly in breadmaking, cooking dried legumes, and brewing beverages.

Water functions as a cooking medium in boiling, steaming, and poaching; as a hydrating agent in doughs, batters, and sauces; and as a solvent for dissolving ingredients such as salt, sugar, and spices. It serves as the base for stocks, broths, soups, and sauces, and is essential for blanching vegetables, cooking grains and pasta, and tempering chocolate. Water's temperature and ratio to other ingredients significantly affects texture, flavor development, and the success of baked goods and cooked dishes across all cuisines.