Or really Any Berry Jam. I just have blackberries because I had 3 very good pickers and because it's my favorite!
3 c blackberries
5 c sugar
1 box "sure jell"
6-8 half pint freezer-safe jars with lids
Crush berries coarsely (I used one of the jars)
Add sugar to berries. Stir well and let sit while you do the next step. Put 1 c cold water in a small saucepan. Dissolve sure jell in it and bring to a boil for 1 minute. Add this to the berry mixture. Stir vigorously for 2 minutes. Pour into jars leaving a little space at top. Put lids on immediately and let sit for a few hours (I've read everything from 2 hours to 24-I did mine overnight). Place in freezer. Remove an hour before you want to serve it. How easy is that?