Teriyaki Sauce (Japanese — Soy, Mirin, Sake, Sugar Ratio)
Japanese, with documented use of soy-mirin glazing techniques dating from the Edo period (17th–19th centuries). The term teriyaki first appeared in Japanese culinary writing in this period. The technique spread internationally with Japanese immigration to Hawaii and North America in the late 19th century.
Teriyaki — from the Japanese teri (gloss, shine) and yaki (grilled, broiled) — describes both a cooking method and the sauce used in it. The sauce is a reduction of soy sauce, mirin, sake, and sugar in specific ratios that, when brushed onto protein and exposed to heat, caramelise and create the characteristic glossy, lacquered surface that gives the technique its name. It is a fundamental Japanese preparation and, internationally, one of the most widely imitated and poorly executed.
The classical ratio is equal parts soy sauce, mirin, and sake, with sugar to taste — traditionally 1:1:1 with a small amount of sugar to accelerate caramelisation and add body. These three liquids are combined and reduced by a quarter to a third to concentrate the sugars and develop body, then used as a glaze during the final stages of cooking. The sake cooks off, leaving its sweetness and umami; the mirin provides both sweetness and the ability to caramelise cleanly; the soy provides salinity and colour. Together, reduced, they produce a glaze of remarkable versatility.
The most common application is chicken teriyaki: a chicken thigh is seared skin-down in a pan, turned, and the teriyaki sauce is added to glaze during the final minutes of cooking. The sauce reduces in the pan, coating the chicken in successive layers of caramelised glaze. Fish teriyaki (salmon, yellowtail) is approached differently — the fish is often marinated in the sauce before cooking, which helps the glaze adhere. Beef teriyaki requires a faster hand to avoid over-caramelisation.
Commercial teriyaki sauces bear little resemblance to the classical preparation — they are primarily corn syrup, water, and minimal soy, thickened with starch. Making the real preparation takes 10 minutes and transforms the result.