Ponzu Clásico · con Variante Yuzu

A real Japanese kitchen has ponzu in the fridge the way a Spanish kitchen has alioli. It sits in a glass jar, shakes a little when opened, and appears at almost every course — a dip for gyoza, a dressing for cucumber sunomono, a glaze for grilled fish, a finishing acid on chawanmushi, the dressing under every crudo that isn't a ceviche. The recipe itself is almost absurdly simple: shoyu, mirin, citrus, dashi. It is the ratios + the rest that separate a shelf-stable restaurant ponzu from a sharp thrown-together imitation.

The classical Kansai ratio is 1 : 1 : 1 (shoyu : mirin : citrus) with a splash of rice vinegar and a measured cup of dashi. The whole mixture rests 24-48 hours refrigerated before use — this is the single biggest flavor lever. The rest lets the citrus acid mellow, the shoyu's edge soften, the mirin's alcohol dissipate, and the dashi's umami integrate. The difference between a day-one ponzu and a day-two ponzu is perceptible side-by-side.

Two variants ship with this recipe: the classical (rice vinegar + sudachi OR yuzu OR lemon), which is the universal Japanese-kitchen workhorse, and the yuzu-forward (100% yuzu juice, no rice vinegar), which pairs with crudo applications where yuzu's floral-citrus complexity is the feature note. Both use the same technique and rest; only the acid components differ.

The connection web: this ponzu is the dressing in kanpachi-crudo ✅, the drizzle in the new hamachi-crudo-yuzu-kosho, the oyster-dressing option in the proposed oysters-three-dressings (UMAMI-2 #4), the dashi-bridge to dashi-tm6-ichiban-niban ✅ (which this recipe consumes as an ingredient), the gyoza dip, and the cold-soba tsuyu base. One recipe, six downstream applications. The pantry multiplier equivalent of tomate-concentrado-tm6 for the Japanese side of the library.