Process the graham crackers in the bowl of a food processor fitted with a metal blade. You want very fine crumbs with no lumps. Add the butter and sugar.
Press the crumbs very firmly into a pie plate and up the sides. Using the bottom of a measuring cup can help to press firm.
Bake the crust for 10 minutes. Cool completely on a rack before continuing with your pie recipe. If the pie recipe calls for an unbaked crust, chill it in the freezer instead of baking it.
Notes
You can make this and store the crust, in your pie pan, in the fridge for a few days before using. You can also freeze the crust for up to 3 months. Simply thaw before using.Variations: Feel free to substitute your favorite cookies or digestives instead of the graham crackers. You can use Oreo cookies, Biscoff, shortbread, or another favorite cookie.