Lay the large flour tortilla flat on a clean work surface.
Spread the marshmallow fluff in a 4-inch circle in the center of the large tortilla.
Layer the milk chocolate pieces and mini marshmallows evenly over the marshmallow fluff.
Place the graham cracker halves on top of the chocolate and marshmallows.
Place the small flour tortilla directly over the graham crackers.
Fold the edges of the large tortilla up and over the small tortilla, creating pleats to seal the wrap tightly.
Melt the butter in a non-stick skillet over medium heat.
Place the crunchwrap seam-side down in the skillet and cook for 2 to 3 minutes until the bottom is golden brown and the pleats are sealed.
Carefully flip the wrap and cook the other side for an additional 2 minutes until crispy and the internal chocolate is melted.
Remove from heat and let rest for 60 seconds before slicing.