Preheat oven to 350F. Line a large baking sheet with parchment. (Optional: trace a circle onto the parchment, flip so the circle is facing the baking sheet. You should still be able to see what you drew.)

Use your hands to form the cookie dough into a large circle, about ¼" thick.

Bake in preheated oven for about 20 minutes or until the cookie is a deep golden and the center is no longer gooey. Remove from oven. Turn on your broiler and move an over rack up to the top if necessary.

Sprinkle graham crackers evenly over the cookie. Top with chocolate pieces and marshmallows.

Return to the oven for about 5 minutes, until the marshmallows are toasted.

Serve warm! Slice it like a pizza!