In a medium bowl, whisk together gingersnap crumbs, brown sugar, and salt. Add melted butter, stirring until well combined. Using the bottom of a measuring cup, gently press crumb mixture into bottom and up sides of a 9-inch pie plate.
Bake for 10 minutes. Let cool completely on a wire rack.
Notes
Note:For the best results, the crumbs you use should be fine, like the texture of a nut meal. You should not see any chunks.