I’ve always made this point to everyone I’ve ever ate doughnuts with, and they all think I’m crazy, but I think I’m right.

Almost all doughnuts have something on top. Sugar, chocolate, sprinkles, whatever it is. When you eat it normally, your tongue tastes mostly dough, rather than the topping.

Everyone knows the best part of doughnuts are the topping, so by eating it upside down, you’re getting the best part fully on your tongue, rather than just some of it.