a gugelhupf (also "kugelhupf", "guglhupf", "gugelhopf", and, in france, "kouglof", "kougelhof", or "kougelhopf") is a yeast based cake (often with raisins), traditionally baked in a distinctive circular bundt mold. it is popular in a wide region of central europe (sometimes known under a different name with small variations) including southern germany, austria, switzerland, croatia, hungary, serbia, slovakia, slovenia, czech republic, poland and alsace. it is closely related to the christmas cake in italy known as the pandoro and to the american bundt cake.