With rack in middle of oven, preheat oven to 350° F.
Butter a 9-inch pie pan or plate.
In a medium bowl, stir together graham cracker crumbs, sugar, and butter with a fork until thoroughly combined.
Evenly press crust mixture onto bottom and up all sides of pie pan or plate.
Bake 10 minutes.
Transfer pie plate to a rack. (Leave oven on)