0 Preheat oven to 425 degrees. Coat a baking pan or a cast-iron skillet with cooking spray.
1 Layer chocolate along the bottom of the pan, covering as much of the pan as possible.
2 Cover the layer of chocolate with marshmallows. Place the marshmallows vertically and tightly compacted together.
3 Bake at 425 for 8-10 minutes, until the tops of the marshmallows turn golden brown.
4 Serve the dip immediately in the same pan.
