Sounds like a variation of Bananas FosterHere's the proper way to eat a banana:
Lay the bananas on the bench and slice in long halves with the curve.
In the kitchen on the stove, mix a big knob of butter to melt with 2 knobs of brown sugar and 1/2 C dark rum.
Drink the other 1/2C rum that isn't in this recipe and add a heaping teaspoon cinnamon to the pot and stir.
Skins on. Cut faces down on the medium grill for 3-4 minutes then 3-4 minutes on the skin side.
Plate cut sides up and add a major scoop of vanilla ice cream and a big splash of rum sauce.
A fresh pineapple cut in 6 wedges works OK as do a bunch of halved, free-stone peaches.