one slice of bread (any kind)
one egg
softened butter
biscuit cutter OR juice glass

spray a frying pan with nonstick spray and set it aside.

butter the piece of bread on one side. put it butter-side-down in the frying pan. butter the side on top. (using a rubber spatula makes this easier.)

with a biscuit cutter or the rim of a juice glass, stamp a hole in the center of the slice of bread. put the circle you’ve cut out next to the slice of bread in the pan.

put the pan on medium heat and wait until the bread starts to fry. then crack an egg and drop it into the hole in the bread. (if you’re really hungry, you can use two eggs.) add salt and pepper to the egg if you wish. when the egg has cooked on the bottom, flip the whole thing, bread and all, with a spatula. also flip the cutout circle of bread. fry until the egg is done the way you want it.