Sorry about that.
I nuked the chocolate on the graham cracker with the marshmallow on top. Next time, I'll just do the marshmallow on the cracker and add the chocolate after. I sort of ended up with chocolate sauce. It was very messy, but very good!
Really, you could toast the marshmallow over the stove and make a s'more without the microwave.
This is why I don't keep this sort of stuff in my house! If it's not here, it never occurs to me to buy it and I don't crave it. If it's here though, look out!