Crushed pineapple, Cool Whip, lemon and lime juice, and just a touch of sugar. In a blender puree 2 cans of crushed pineapple with the juice, 2 tbsp of sugar, and 2 tbsp of both fresh lemon and lime juice. To the blender jar add in 1, 8 oz container of Cool Whip. Puree again. Pour the mixture into your ice cream maker and process for 10-20 minutes.