Soak the raisins in warm water for an hour and drain while mixing the yeast part.
Wake up the yeast in the warm water and sugar, about 10 minutes or until spongy.
Whisk the eggs well in a large mixing bowl, then add the milk and butter. Add the yeast mixture and mix well.
If you plan to use raisins, coat the well-drained raisins with 2 cups of flour. This helps keep the raisins from popping out of the dough while rising and/or frying.
Add 3 cups of flour to the liquid ingredients. Incorporate the raisins/flour mixture into the dough.
Cover and let rise until doubled.