My wife wants to make Raspberry Freezer Jam that includes Sure-Jell and lemon juice. I have not found anything on line, but I suppose if I spend a few hours I might find one, but 20 min. was my limit.
Oli, buy a box of Sure Jell...read the instructions and it will give you very easy and detailed
instructions on how to do it. Not difficult at all, and freezer jam is the way to go because it tastes so fresh. Adding a small amount of lemon juice,
according to the instructions on the link should give you and your wife what you are looking for.
I've added lemon juice before , no more than called for
I've even added liquors to my frozen strawberry jams. Sometimes I have had a batch that does not set up as much, so we use it for ice cream, or other desserts. Works just fine.