クリスマスケーキ
Some roulades consist of cake (often sponge cake) baked in a flat pan rolled around a filling. Cake rolled around jam, chocolate buttercream, nuts or other fillings, is an example of a sweet roulade like the bejgli or the Swiss roll. The bûche de Noël or "Yule log" is a traditional French Christmas cake roll, often decorated with frosting made to look like bark.