What is "prinzregententorte"

Prinzregententorte is a Bavarian torte, which consists of at least six, mostly seven, thin layers of sponge cake interlaid with chocolate buttercream and a topping of apricot jam upon the very last. The exterior is covered in a dark chocolate glaze.

The Prinzregententorte is very popular in Bavaria, available in cake shops all year round.