Japan — ankake technique adopted from Chinese cooking methods through the influence of chuka ryori (Japanese-Chinese cuisine); formalised as Japanese technique through the 18th–19th century; applied across both chuka and washoku preparations
Ankake (lit. 'poured sauce') refers to a category of Japanese sauce in which a starch-thickened liquid is poured over or incorporated with food — a technique of remarkable versatility that appears in everything from delicate chuka-don (Chinese-style rice bowl) to refined kaiseki preparations. The starch used in Japanese ankake is most commonly katakuriko (potato starch), though kuzu (kudzu arrowroot starch), rice starch, and occasionally combinations of these are used for specific applications where different clarity, texture, or stability characteristics are required. Katakuriko produces the most versatile ankake: it thickens quickly at around 80°C, produces a translucent but slightly cloudy sauce, and retains its gel when cooled and reheated without significant breakdown. Kuzu-based ankake is more expensive and produces a slightly clearer, more elegant sauce with a distinctive mochi-like mouthfeel when fully gelatinised — preferred in higher-end applications and in shojin ryori where the sauce must be plant-based and the clarity matters aesthetically. The proper ankake technique requires mixing the starch with cold water first (mizukatakuriko), then adding to the hot liquid in a thin stream while stirring constantly — adding dry starch to hot liquid causes immediate lumping. Ankake appears in Japanese cuisine in several forms: agedashi tofu (deep-fried tofu in a light ankake dashi); ankake chahan (fried rice with poured sauce); tenshinhan (crab omelette over rice with ankake sauce); and ankake udon (udon noodles in thick, warming winter sauce). The sauce's temperature retention property (the viscous starch gel retains heat far longer than a thin sauce) makes ankake particularly valued for winter dishes.
N/A (technique context) — but ankake's functional contribution is significant: it extends the heat of a dish after serving, creates a coating texture that delivers sauce and broth together in each bite, and in kuzu applications adds a distinctive silky-mochi mouthfeel to the sauce
{"Mizukatakuriko (starch-water slurry): always mix starch with cold water before adding to hot liquid — dry starch lumps immediately in heat","Katakuriko vs kuzu: katakuriko — fast, versatile, slightly cloudy; kuzu — slower, more elegant clarity, mochi-like mouthfeel","Temperature for thickening: ankake thickens at approximately 80°C; must be brought to this temperature for full gelatinisation","Constant stirring during addition: pour the slurry in a thin stream while stirring in one direction to prevent lump formation","Heat retention property: thick starch gel retains warmth far longer than thin sauces — especially valuable for winter preparations"}
{"Kuzu ankake for kaiseki tenshinhan: the slight mochi-like mouthfeel and glass-clear colour make kuzu the preferred starch for high-end preparations","Ankake consistency test: the sauce should coat a spoon but not be stiff; flow slowly when the spoon is tilted","Vinegar ankake: add a small amount of rice vinegar to reduce the starch's viscosity slightly for a brighter, less heavy sauce body — used in some chuka-don preparations","Temperature check before serving: ankake must be served very hot; the sauce should release steam when poured over the dish","Agedashi tofu ankake: make separately and pour over immediately before service — allowing it to sit produces a soggy exterior as the ankake penetrates the fried tofu"}
{"Adding too much starch at once: ankake should be gently thick, not paste-like — add in small increments, testing consistency","Not bringing the sauce to full temperature: incompletely gelatinised ankake weeps water and separates as it cools","Stirring in both directions alternately: one-directional stirring produces a smoother gel; alternating directions creates shearing that produces a coarser texture","Re-thickening with more starch after the sauce has cooled: the existing gelatinised starch re-liquefies; reheat fully and add fresh slurry if necessary","Using hot water to make the starch slurry — hot water partially gelatinises starch before adding to the sauce, causing lumps; always use cold water"}
Japanese Cooking: A Simple Art — Shizuo Tsuji; The Japanese Kitchen — Hiroko Shimbo