Mix yeast in warm water.
In a separate bowl, mix hot water, sugar, and butter.
Add the yeast mixture and knead until dough forms an elastic ball (roughly 10 min).
Cover with a towel.
Knead the dough down every 10-15 min over the next hour.
After the final kneading, shape the dough, let it rise, score, and egg wash if desired.
Bake at 375 F.
