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
{"Fundamental ratio: 1:1:1 rice vinegar to soy sauce to mirin by volume (adjustable by application)","Three-way balance of acid (vinegar), salt (soy), sweet (mirin) produces harmony each alone cannot","Mirin can be heated to cook off alcohol before combining for mellower sweetness","Nanbanzuke: sanbaizu as pickling liquid for fried fish or chicken","Sumiso: white miso blended into sanbaizu for richer dressings for shellfish and vegetables"}
{"Blanch or pre-treat vegetables before dressing—raw vegetable moisture dilutes the balance","For richer preparations: add a teaspoon of dashi to the sanbaizu to soften the acid edge","Sumiso: blend 2 tbsp white miso + 2 tbsp rice vinegar + 1 tbsp mirin until smooth","Nanbanzuke: standard sanbaizu plus sliced negi and dried chili as the pickling aromatics"}
{"Using overly assertive dark soy instead of light soy which unbalances the color and flavor","Not adjusting the ratio for the specific ingredient—delicate ingredients need lighter application","Using chemical or harsh vinegar rather than rice vinegar which has lower, gentler acidity","Applying directly to salted vegetables without draining excess liquid—dilutes the dressing"}
Shizuo Tsuji — Japanese Cooking: A Simple Art