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.

Form mixture into walnut-sized balls, then place on a cookie sheet and freeze for 2 hours.

In the top of a double boiler or in a medium stainless steel bowl set over a pot of gently simmering water, melt chocolate (we recommend tempering the chocolate, but if you don’t, they’ll still be delicious, just a bit messy). Line a baking sheet with parchment paper. Dip the frozen balls into the melted chocolate, then place onto prepared baking sheet. Let sit for 15 minutes or until firm.

NOTE: When rolling the balls of pecans, they can be sticky. You can wet your hands so the filling will not stick!

Line a 13-in. x 9-in. pan with foil; grease the foil with 2 teaspoons butter and set aside.

In a large heavy saucepan, combine the sugars, corn syrup, 1 cup cream and the remaining butter. Cook and stir over medium heat until sugar is dissolved. Bring to a boil. Slowly stir in the remaining cream. Cook, without stirring, until a candy thermometer reads 245° (firm-ball stage).

Remove from the heat; stir in pecans and vanilla. Pour into prepared pan (do not scrape saucepan). Let stand until firm. Using foil, lift candy out of pan. Discard foil; cut candy into 1-in. squares. Wrap individually in waxed paper; twist ends.