Cut off a 12x12 inch piece of tinfoil. Place the tortilla onto the foil. Place a few pieces of graham crackers in the center of the tortilla. Add some large marshmallows, a handful of chocolate chips, a couple slices of butter and a few sprinkles of cinnamon. Roll the tortilla cup with the sides folded inwards. Spray the tinfoil generously with some non-stick cooking spray. Roll the burritos up in the tinfoil. Place the foil wrapped burritos in the oven, on a grill or in a fire pit. Let it cook until the insides are nice and melted. Remove from the heat and let cool for 5-10 minutes. Unwrap and enoy.