It may be a surprise to some people (it certainly was to me) that there are about half a million people of Jamaican origin living in Canada. This dish apparently originated with the first of the Jamaican immigrants. There is no recipe; it’s more like a serving suggestion for bananas.
Take a banana and a half for each person. Smash it around a bit with some rum and brown sugar. Blend some maple syrup with some whipped cream. Crush some biscuits of your choice. Alternate layers of banana, cream and biscuits in a glass, finishing with cream. Sprinkle with brown sugar, chocolate or whatever takes your fancy. Chill well. Not very authentic, but certainly sweet.
Sorry there’s no photo of the dish; we ate it all.