Peel the pineapple and cut out the hard core. Cut the flesh of the pineapple into small slices, sprinkle with fine sugar and put in a glass dish to cool.
Finely crush the peel and core in a mortar, pour on the lauter sugar (tap water boiled with sugar) and leave to stand for a little while. Strain and squeeze. Then add to the pineapple slices and pour white wine (possibly ditto tap water).
Serve cold on the table.