Wikipedia
Bethmännchen
Bethmännchen ( German for "a little Bethmann") is a pastry made from marzipan with almond, powdered sugar, rosewater, flour and egg. It is a traditional cookie usually baked for Christmas Day and is widely available in chocolate shops around Frankfurt.
It is a special commodity sold in Frankfurt's Christmas market, one of the oldest Christmas markets in Germany which dates back as far as 1393.