Jacob told me the other day that he wanted S'mores!!  I closely monitored my marshmallow on a long fork over the gas stovetop.  It turned out nice and toasty brown and melted perfectly on our chocolate and graham crackers!  (hint:  I kept a bowl of water VERY close by just in case).  It caught fire one time and I quickly blew it out (like at a campfire).  I never let it melt off of the fork onto my stovetop.