Cut a hole in the center of the bread with an upside-down drinking glass. Melt 1 pat of butter in a small frying pan over low heat. Toss in the bread and break the egg into the hole. Don't worry if you break the yolk. Cook until the bread is golden brown on the bottom. (You can peek with a spatula.) Turn the bread (with egg) over, put the remaining butter in the pan and use your spatula to make sure it gets under the bread. Continue frying until the egg looks done, no more than a couple of minutes. Serves 1.