With a food processor, I separately chopped the pecan and graham cracker crumbs until they were crumbs.
In a medium bowl, stir together pecans, graham cracker crumbs, brown sugar and salt until well combined. Add maple syrup, bourbon and vanilla, stirring thoroughly. Use your hands to make sure the mixture becomes fully incorporated. Freeze the mixture for 15-20 to make the next step easier! THIS IS A VERY IMPORTANT STEP! If you don’t freeze the mixture, it will be very difficult and messy to try to roll balls because the mixture is so, so sticky!!
Remove from freezer and form mixture into walnut-sized balls with your hands. Then place on a cookie sheet and return to freezer to freeze for 2 hours.
In a double boiler or in the microwave, melt the chocolate. Line a baking sheet with parchment paper. Dip the frozen balls into the melted chocolate, then place onto prepared baking sheet. Once all balls are dipped, put into the refrigerator to set the chocolate.