The sugar amount can vary depending on how sweet the fruit is. I started with 3 cups of sugar, tasted a cooled off spoonful, and added more as necessary.
Both the sugar and chipotle mellows as the jam sets, so it should be alright if the mixture is a little too sweet or spicy initially.
If you do not use a water bath, you can store jam in the refrigerator for up to 3 weeks or freezer for up to a year.
Yields 6 half pints