Preheat your oven to 325 degrees. Lay your graham crackers tightly across the area
of a lightly greased rimmed baking sheet.
Trim any crackers to fit the sides of the pan if needed. Set aside.

In a large saucepan, bring the butter, sugar and pecans
to a boil over medium heat for 3 minutes, stirring constantly.

Carefully (and evenly) pour boiled mixture over the entire plane
of graham crackers, spreading pecans around evenly.

Immediately pop graham crackers into
the oven and bake for 8 minutes.

Allow graham cracker bark to cool completely
before breaking into pieces and storing airtight.