Here is my recipe:
Take the peel from a pineapple and boil in a pot for about 15 minutes on medium heat in 4 cups of water, then simmer for another 15 to 20 minutes. After the pineapple peels have cooked down, drain thru a strainer. Now, take a couple of pineapple pieces and put thru the blender and puree. Add this to the liquid. Add about 3/4 cups of sugar or more depending on how sweet you want it.
Ice cream maker:
Once the liquid has cool down put it in the freezer for about an hour, to make sure the liquid gets really cold. Then pour in your ice cream machine just as you would ice cream. Let it get nice and slushy. If you don't have an ice cream machine then pour into individual cups and freeze..Enjoy!!