Several years ago we bought a cookie from some local bakeries that are now out of business.  I will describe them and if anyone has the recipe or knows what they are called, I would greatly appreciate you posting here.

They are three inch logs made up of a chocolate cake with banana flavoring.  Once the cookie is baked it was dipped in dark chocolate and sprinkled with candied sugar.

I have looked everywhere for either the cookie or the recipe and cannot find it anywhere.  The family remembers these cookies and would like to know either how to make them or where we can purchase them in the Detroit area.