Inspired by the Frankfurter Kranz, one of Germany’s most well-known cake specialties. Buttery sponge, caramelized brittle, and fine buttercream come together to define the character of this liqueur.Inspired by the Frankfurter Kranz, one of Germany’s most well-known cake specialties. Buttery sponge, caramelized brittle, and fine buttercream come together to define the character of this liqueur.