01 -
Line a 9 x 13-inch pan with parchment paper, leaving overhang on two sides. Lightly butter the parchment.
02 -
Melt the butter in a large pot over low heat. Add about three-quarters of the mini marshmallows and the salt, then stir until smooth. Remove from the heat and stir in the vanilla.
03 -
Fold in the crispy rice cereal, Golden Grahams, and crushed graham crackers until evenly coated.
04 -
Let the mixture cool for 1 minute. Fold in 1 cup of the chopped chocolate and the remaining reserved mini marshmallows just until scattered through the cereal.
05 -
Transfer the mixture to the prepared pan. Press lightly into an even layer with buttered fingertips or a greased spatula.
06 -
Sprinkle with the remaining chocolate, topping marshmallows, and crushed graham crackers. Toast the marshmallows with a kitchen torch, or broil for 20-45 seconds in a broiler-safe metal pan while watching closely.
07 -
Cool for at least 45 minutes, then lift from the pan and cut into 16 squares.