No. In fact, although yum yum sauce was created for Japanese steakhouses, it's clearly an American mayo-based sauce, similar to u003ca href=u0022https://heygrillhey.com/alabama-white-sauce/u0022 target=u0022_blanku0022 rel=u0022noreferrer noopeneru0022u003eAlabama White Sauceu003c/au003e. Yum yum sauce may also be referred to as Japanese white sauce or sakura sauce. The main difference with these is that instead of using bottled mayonnaise, you make your own mayo with egg yolks and oil.