Sanbaizu Three Flavors Vinegar Dressing Sunomono

Japan; the most fundamental dressing formula across all Japanese home and restaurant cooking

Sanbaizu ('three-flavor vinegar') is the foundational Japanese dressing formula—rice vinegar, soy sauce, and mirin combined in specific ratios to produce a balanced sweet-sour-savory vinegar dressing used for sunomono (vinegared salads), aemono (dressed preparations), and various chilled appetizers. The name reflects the three-way balance of acid (vinegar), salt (soy), and sweet (mirin) that achieves a harmony impossible from any single ingredient. The most common ratio is 1:1:1 by volume but this is adjusted by application: cucumber sunomono benefits from lighter dressing; rich ingredients like octopus or crab benefit from a stronger version. A variation called nanbanzuke uses sanbaizu as the base for marinating fried small fish or chicken—the vinegar-soy-mirin combination both seasons and mildly pickles the ingredient. Sumiso (miso-vinegar) is a related preparation where white miso is blended into a sanbaizu base for richer sunomono dressings used for shellfish (wakame and hamaguri in sumiso), vegetables, and brassicas. The sanbaizu principle illustrates a broader Japanese dressing philosophy—the three-way balance of acid, salt, and sweet—which underlies ponzu, tare, and many other condiments. At its simplest, sanbaizu can be made by combining the three liquids cold without heating; heating mirin to cook off alcohol before combining produces a slightly more mellow result.

Balanced sweet-sour-savory; the three elements harmonize rather than compete; versatile across many applications