Although archaeologists had found some petrified remains of fried cakes with holes in the center, it is still unclear how could the early Native Americans prepare these delicious fried dough desserts that we know today as doughnuts. In the past, doughnuts were known as olykoeks (oily cakes), and the pilgrims from Holland are credited for bringing them to the United States.
Those early doughnuts were often made with prunes, raisins, or apples in the middle. During World War I, the doughnut was already an American favorite, consumed by soldiers that were fighting overseas as a reminder of home. In the 1950s and the 1960s, the popularity of these treats was so big that new doughnut chains started appearing on the market, such as Krispy Kreme and Dunkin' Donuts, helping in the perception of doughnuts as breakfast food.