Panettone is an Italian type of sweet bread originally from Milan usually prepared and enjoyed for Christmas. It has a cupola shape, which extends from a cylindrical base and is usually about 12–15 cm high for a panettone weighing 1 kg. It is made during a long process that involves curing the dough, which is acidic, similar to sourdough. The proofing process alone takes several days, giving the cake its distinctive fluffy characteristics. It contains candied orange, citron, and lemon zest, as well as raisins, which are added dry and not soaked. Many other variations are available such as plain or with chocolate. It is served in wedge shapes, vertically cut, accompanied with sweet hot beverages or a sweet wine, such as Asti or Moscato d’Asti.