Kewpie Japanese Mayonnaise

Japan — Kewpie Corporation, Tokyo; first Japanese mayonnaise, introduced 1925 by Toichiro Nakashima following study of American food manufacturing; now the dominant condiment category in Japan

Kewpie mayo (Kyupi mayonezu) is not merely a condiment but a distinct ingredient category that has shaped Japanese cooking since its introduction in 1925 by Toichiro Nakashima, who founded the Kewpie Corporation after studying food manufacturing in the United States. Japanese mayo differs from Western mayonnaise in several fundamental ways that make it a genuinely distinct product rather than a regional variation: it uses only egg yolks (not whole eggs), giving it a richer, creamier texture and deeper yellow colour; it uses rice vinegar instead of white wine or distilled vinegar, producing a milder, more rounded acidity; and it typically includes monosodium glutamate (MSG) and sometimes dashi-based seasoning, creating a pronounced umami depth absent in Western counterparts. The result is a sauce with a higher fat content than Western mayo, a more viscous texture that holds its shape when squeezed from Kewpie's iconic soft squeeze bottle (designed for precise application), and a flavour profile often described as 'egg-rich, tangy-sweet, umami-forward.' Kewpie has become integral to a vast range of Japanese dishes: takoyaki and okonomiyaki (applied in thin parallel lines across the surface), karaage dipping, tuna-mayo onigiri filling (one of Japan's most beloved combinations), potato salad (Japanese-style with cucumber, ham, and carrot), Japanese-style egg salad sandwiches (tamago sando — a category whose popularity has driven a global following), and as a finishing element in ramen eggs (ajitama). The product's cultural penetration is so complete that many Japanese cooks do not consider Western mayonnaise a functional substitute, and Kewpie is now exported globally to serve Japanese communities and has gained international recognition among professional chefs for its superior umami content.

Rich, creamy egg-fat depth with mild rice vinegar tang; pronounced umami from MSG enhancement; sweet-savoury balance; clings and coats rather than running — a unifying flavour bridge for Japanese comfort food