Preheat the oven to 325ºF.
Process the graham crackers into fine crumbs using a food processor or by crushing them in a ziplock bag with a rolling pin.
Melt the vegan butter in the microwave in 15second intervals until completely melted.
Mix the graham cracker crumbs, brown sugar, and melted butter.
Press the mixture into the bottom of a 9inch round pan.
Bake for 15 minutes. Let it cool completely.