i attended my local octoberfest and noticed a black forest cake inspired with rose’s roulade charlotte ring as on ROSE’S heavenly CAKES: Apple Caramel Charlotte (page 215)
if you look closely, seems to be a ‘quick version’, where alternating colored layers of cake batter are baked, then thinly sliced in strip sections. clever!
here some more pictures of my octoberfest! sorry for the camera blur!