Doughnut vs. Donut
What's the most correct way to spell that favorite cake we love to enjoy at breakfast?
donut
doughnut
Both are equally correct.
And the most correct spelling is . . . "doughnut." "Nut," in this sense, means "rounded cake." "Donut" is a variant spelling, and "doughnut" is preferred by the Associated Press Stylebook and Garner’s Modern English Usage because it keeps the name of the main ingredient.
Now, go enjoy a doughnut.