Melt 1 stick of butter to coat the bottom of the pan. Preheat your oven to 450° Fahrenheit. Boil the potatoes till fork tender in the salted water. Smash the potatoes in a buttered 13×19 pan. Add the cheese, bacon, salt and pepper. Taste the potatoes before salting them, for they will absorb salt in the boiling. Put the last stick of butter on top in pats. Put the pan into the oven with the bacon and butter, on top.