From 1922:
Ingredients: Six bananas, six ounces of sugar, one pint of cream, half a glass of brandy, half an ounce of gelatine, and one lemon.
Method: Peel the bananas and pound them up in a mortar with the sugar and lemon juice; whip the cream till it is stiff, and mix them carefully together; stir in the brandy, and the gelatine dissolved in a tablespoonful of water; pour into wet moulds till firm.