Line a 15x10x1-inch baking sheet with the graham crackers. Set aside. Preheat oven to 375°F.
In a small saucepan over medium-high heat, melt butter. Add in sugar and bring to a rolling boil, stirring constantly, boiling for one full minute.
Pour over graham crackers. Bake in oven for about 12-14 minutes, until crackers are lightly browned and caramelized.
Remove from oven and immediately sprinkle with both types of chocolate chips. Allow to sit for about 3-5 minutes. Using a spatula, spread melted chocolate over the crackers, until smooth. Sprinkle with crushed cookies and allow to set.
Break into pieces and store in airtight container for up to 7 days.