In a small bowl using a hand mixer, beat the butter on high speed until smooth. Add the brown sugar and cinnamon. Mix on high speed until combined. It will be like a thick paste.
1/2 cup Unsalted butter, 1/2 cup Brown sugar, 1/2 TBSP Ground cinnamon
Chop the chocolate until small pieces. Set aside. Using a blender, pulse the graham crackers until small pieces.
1 1/2 cups Chopped chocolate, 1 1/2 cups Graham cracker crumbs
Place the dough on a lightly floured surface. Use a rolling pin to roll the dough into a large rectangle about 1/4 inch thick. Use a serrated knife to cut the uneven edges off the dough.
Spread the cinnamon filling using an offset spatula over the dough. Sprinkle the chocolate and graham cracker pieces over the dough.
Roll the dough into a log, start on the short side of the dough. Cut off the uneven ends. Then, cut into 12 equal rolls. The graham cracker pieces will fall out of the rolls a little, just toss any that fall out.
Spray a 9X13 pan with baking nonstick spray. Place 12 rolls in the pan. Cover with a kitchen towel and let rise for 20 minutes. While waiting, preheat the oven to 375℉.
Bake the rolls for 20-25 minutes until the tops are lightly golden.