National Doughnut Day National Doughnut Day. National Donut Day is an American food holiday celebrating donuts or doughnuts. It falls on the first Friday in June, although some reputable sources write that the first Saturday in June is also considered part of the celebration.1 Donuts are a snack made from a sweetened dough, usually consisting of flour, sugar, milk, and some sort of fat or shortening ingredient. Some donuts are raised using yeast, while others are made from a yeast-free dough.2 The origin of National Donut Day lies with the Salvation Army and its volunteer work during World War I. It dates back to 1938 when the organization proposed the day in commemoration of this volunteer work, and to raise funds.3 National Donut Day is generally only popular in the United States, but may be known or publicized by some retailers or food writers outside of the U.S. It is a holiday with a known source, but it is not recognized or endorsed as a national holiday by government. It s...