For the raisin gugelhupf, mix all ingredients into a dough. Rinse the raisins, drain well. While still wet, mix with a tablespoon of flour, shaking off any flour that does not adhere repeatedly in a sieve. Mix the raisins into the dough. The flour will prevent the heavy raisins from sinking to the bottom of the pan.
Bake in a prepared gugelhupfform, greased and floured, for 40 minutes at 180 degrees.