Japan-wide — aemono as a fundamental side dish category throughout Japanese culinary history
Aemono (和え物, dressed foods) is the category of Japanese preparations where cooked (or occasionally raw) vegetables, seafood, or tofu are dressed with a flavoured sauce or paste — essentially Japanese salads, though always served at room temperature or slightly chilled, never cold. The dressings (ae-koromo, 'dressing cloak') include: goma-ae (ground sesame); shira-ae (white tofu dressing — mashed tofu with sesame, miso, and soy); kuni-ae (Japanese walnut dressing); su-mise (vinegar-miso); and karashi-ae (mustard-soy dressing). Aemono represents the 'dressed cold side dish' component of ichiju-sansai meals. The art is in the balance of the dressing — it should enhance the vegetable's natural flavour without masking it; in the timing — vegetables should be dressed immediately before serving (early dressing causes weeping and dilution); and in the textural compatibility between dressing consistency and ingredient texture.
The flavour is determined by the dressing type: goma-ae is nutty-sweet-savoury; shira-ae is delicate, creamy, tofu-mild; karashi-ae is pungent and warming; all share the characteristic of amplifying the vegetable's natural flavour rather than masking it
Always drain and squeeze vegetables thoroughly before dressing (excess moisture dilutes the dressing and creates a watery dish within minutes); dress immediately before serving; the dressing quantity should coat without drowning — aemono is not a wet preparation; for shira-ae, press tofu very firmly before mashing (remaining moisture dilutes the dressing catastrophically).
Shira-ae benchmark: press 200g firm tofu under a weighted board for 30 minutes; break apart and mash until smooth; mix with 2 tablespoons white sesame paste (or ground sesame), 1 tablespoon light soy, 1 tablespoon mirin, small amount of salt — use as dressing for blanched spinach, konnyaku, or green beans; the shira-ae should hold together and coat without being runny; karashi-ae (mustard-dressed) pairs best with slightly bitter greens (shungiku, spinach) where the mustard's heat cuts through the bitterness.
Dressing vegetables too far in advance (moisture releases from vegetables and dilutes the dressing — maximum 5 minutes before serving for most aemono); using un-drained blanched vegetables (excess water makes every dressing too thin); over-dressing (the dressed vegetables should be coated, not swimming); making shira-ae without fully pressing the tofu (watery tofu produces watery dressing that separates on the plate).
Japanese Cooking: A Simple Art — Shizuo Tsuji