Step 1

Preheat the oven to 450° degrees Fahrenheit.

Step 2

Slice the marshmallows in half and set aside.

Step 3

Place sweetened flaked coconut in a small bowl and set aside momentarily. Melt the caramel for a few seconds until mostly fluid. Stir in the vanilla extract. Add the semi-melted caramel to the sweetened flaked coconut and mix with a spatula until combined.

Step 4

Line chocolate chips on the bottom of the cast iron skillet in an even layer. Spread the caramel/coconut mixture over the chocolate chips as even as you can. Arrange the marshmallow halves over the caramel/coconut mixture to cover surface of the skillet.

Step 5

Place skillet in the oven for 5-6 minutes until the marshmallows have expanded and melted.

Step 6

Remove from the oven. Allow to cool for a few minutes, then have at it with some graham crackers.