MOTOYAKI - Japanese cusine. baked food topped with a mayonnaise-based sauce served in an oyster shell. Anyone who's ever been to a Japanese restaurant or Sushi bar and had this baked treat wishes they had a recipe that they could use at home. I've created this from several recipes I managed to acquire from local Japanese restaurants. Now all you have to do is learn how to shuck a large oyster that really doesn't want to let you in.