Crush: Crush graham crackers to fine crumbs (food processor or bag + rolling pin). You should have about 1 1/2 cups crumbs from 11 sheets.
Mix: Melt butter. Stir crumbs with melted butter and maple syrup until evenly moistened (holds when squeezed).
Press: Press firmly into the bottom and up the sides of a 9-inch pie plate or springform (use a measuring cup to pack).
Set — bake: Bake at 350°F (175°C) for 8-10 minutes until fragrant; cool completely before filling. Or chill: For no-bake fillings, refrigerate 30-60 minutes (or freeze ~15-20 minutes) until firm.