Preheat grill to medium or oven to 350°F. 

Cut a slit into each banana and open the peel to create a pocket. Stuff marshmallows, chocolate chips and graham crackers into the pocket.

Grill bananas until the skin is charred and marshmallows are lightly golden brown, about 10 minutes.

Serve bananas with a spoon after allowing them to cool for a few minutes. 

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