I had some graham crackers that I wanted to use up and found this recipe for Simple S'mores. I stuck pretty close to the recipe but skipped spreading the melted chocolate across the crackers since I thought it was unnecessary and would make them more s'more-like to leave the chips whole but soft. I also broiled the marshmallows until they were very puffy and brown.
I tried them both open-faced and smooshed together like a sandwich and would recommend the sandwich. Also, I lined a jellyroll pan with nonstick aluminum foil to make clean-up easier and to catch the marshmallows that fell off the s'mores. I love caramelized marshmallows!