...are a speciality of Aachen.
"Printen are made from a variety of ingredients including cinnamon, aniseed, clove, cardamom, coriander, allspice and also ginger. The exact mixture of these ingredients, however, is a close kept secret of the individual Printen bakeries.

Additionally to the original Printen, there are also Printen with nuts (usually almonds), covered in chocolate or glaze and marzipan." (wikipedia)