Preheat your oven to 350 degrees. Place your graham crackers in a food processor. Pulse until very finely crushed.
Measure 1 1/2 cups of crumbs into a mixing bowl. Add sugar and melted butter; stir till mixture resembles wet sand.
Pour crumbs into a 9″ pie pan or springform pan. Press up the sides and into the bottom of the pan. I use my fingers, but you can use a clean measuring cup.
If crust needs to be prebaked, place in your preheated oven and bake at 350° for about 8 minutes, or until set and lightly browned.
Let cool completely on a wire cooling rack, then add filling of your choice.
If your crust needs to be filled first, follow the directions on your pie or cheesecake recipe.