Measure cranberries, (remove stems); then put through food grinder (I use blender). Place cranberries and water in large saucepan and cook for 5 minutes. Add pineapple with syrup and sugar and boil 2 minutes longer. Remove from heat and add pectin. Mix well and let stand for 25 minutes. Pour into jelly jars and seal. Makes 8 or 9 half pints.