Tenkasu, also known as agedama, are crunchy bits of fried seasoned tempura batter that is used in Japanese cuisine as an ingredient or topping. It is used a core component of okonimiyaki and takoyaki where it is mixed into the filling to create a fluffier texture. Tenkasu is added to noodles such as soba, udon, and ramen for flavor and texture. Plain udon and soba prepared this way is called tanuki.