In a saucepan, combine the sugar, butter, and lemon juice.
Heat to melt butter. Add 1/4 cup rum.
Fry the bananas in butter until golden brown. Pour sauce over, and cook until tender.
Arrange bananas on a serving dish. Heat remaining rum. Ignite and pour over bananas.
Sprinkle with toasted almonds. Serve with rum and raisin ice cream, or cinnamon ice cream.