Hiyashi Tanuki Udon is cold Udon noodles with a cold sauce and Tenkasu, fried Tempura batter crumbs.  It is very refreshing but also satisfyingly rich from the Tempura crumbs.  Hiyashi Tanuki Udon is a great dish during summer when you don’t want to make complicated dishes in a hot kitchen.  If you have your Mentsuyu (a multi-purpose sauce) and Tenkasu handy (especially in a bag), the hardest part of the cooking is done.