A traditional dessert served during the Christmas holidays in France, Belgium, Quebec, Lebanon and several other Christian-populated francophone countries as well as in the UK. As the name indicates, the cake is generally prepared, presented, and garnished so as to look like a log ready for the fire.
The traditional bûche is made from a Génoise or other sponge cake, generally baked in a large, shallow Swiss roll pan, frosted, rolled to form a cylinder, and frosted again on the outside. The most common combination is a basic yellow sponge cake, frosted and filled with chocolate buttercream; however, many variations on the traditional recipe exist, possibly including chocolate cakes, ganache and espresso or otherwise-flavored frostings and fillings. Bûches are often served with a portion of one end of the cake cut off and set on top of the cake or protruding from its side to resemble a chopped off branch, and bark-like texture is often produced in the buttercream for further realism. These cakes are often decorated with powdered sugar to resemble snow, tree branches, fresh berries, and mushrooms made of meringue.