Procedure:

Preheat your barbecue.

Split bananas in half lengthwise, without cutting through skin at bottom. Push a quarter of the chocolate and 3 marshmallows into each banana. Wrap tightly in foil. Repeat with remaining ingredients.

Barbecue for 5-10 minutes, turning once or twice until chocolate and marshmallows have melted, and banana feels soft when squeezed. (Take care not to burn your fingers - use tongs). Serve immediately sprinkled with chopped nuts, if desired.