Preheat the oven to 350 F. Place half of the vanilla wafer cookies onto a baking sheet and top each one with a marshmallow. Bake for 2-3 minutes.
Remove from the oven and sandwich with the remaining cookies. Place the chocolate chips into a microwave-safe bowl, and heat in the microwave in 30-second intervals, stirring well until it is fully melted and smooth.
Coat each s'more in the chocolate and set onto a plate. Let sit until it is completely set.