Fastnacht Day means “fast night”. Fastnachts are donuts typically square with a slit in the top. They are sold on Fat Tuesday or Shrove Tuesday. They originated from the Pennsylvania Dutch as a way to use up the remaining fats and sugars forbidden during Lent. Fastnachts are yeast raised donuts made from potatoes and fried in lard. They are square to represent the 4 gospels.