With a spoon, carefully scoop out a channel in the banana. Save this for mashed banana with peanut butter later -- delicious!
Chop up chocolate and marshmallows. If you have chocolate chips or mini marshmallows, you can skip this step.
This is Emily's favorite part -- alternate marshmallows and chocolate along the inside of the banana.
Fold the peel back over. Wrap in aluminum foil, and place on campfire until chocolate is melted and the marshmallows are gooey.