Does your mayo have a little drawing of a naked baby doll slapped on the plastic wrap? It should. Kewpie mayo is a distinctly Japanese mayonnaise–silkier, less fluffy and flabby than American mayo and sweeter, with an extra umami oompf. "It's delicious, acidic and creamy," commends Paul Qui of qui in Austin. Since 1925, Kewpie Corporation, a Tokyo-based manufacturer of salad dressings and other eggy products, has been faithfully exporting great quantities of the readily identifiable plastic bottles of Japan's first brand of mayonnaise.
The Kewpie secret: vinegar and our old friend MSG. Rice vinegar, instead of the usual distilled white vinegar, lends a softly tangy touch and MSG, well you know, makes it ultrasavory and the perfect condiment of choice for your BLT or potato salad.