Ohitashi Spinach Blanch Squeeze Dashi Soak Technique

Japan; universal Japanese home and restaurant technique; particularly associated with Kanto home cooking

Ohitashi is the paradigmatic Japanese technique for preparing leafy green vegetables—a method of blanching, squeezing, and marinating in seasoned dashi that transforms simple spinach (horenso) into a refined side dish expressing Japanese vegetable philosophy. The name derives from hitasu (to soak), indicating the essential step of marinating the squeezed vegetable in seasoned dashi. The process: blanch in salted boiling water for only 30-60 seconds until bright green and just tender, shock immediately in ice water to halt cooking and fix chlorophyll, squeeze firmly to remove all excess water forming a compact log, slice into 5cm segments, and soak in dashi seasoned with light soy sauce and mirin for 20-30 minutes. The vegetable absorbs the dashi flavor while remaining firm. Horenso (spinach) is most traditional but the technique applies to komatsuna (Tokyo turnip greens), mizuna, nanohana (rapeseed blossoms), sansai mountain vegetables, and watercress. Ohitashi is garnished with katsuobushi (bonito flakes), grated ginger, or toasted sesame seeds. The technique emphasizes restraint—the vegetable remains dominant, the seasoning merely enhances without overwhelming.

Vivid green spinach with subtle savory dashi; light soy sweetness; gentle rather than assertive; clean vegetable character