I have been making jam for many years and the recipe frequently calls for equal (or almost equal) quantities of fruit and sugar. How does one preserve this jam? I usually use a hot water bath to seal my lids. Has anyone made this jam for keeping, or does one simply keep it in the fridge?

That is an awful lot of sugar for such a small quantity of jam. I often make jam in the microwave - one cup berries, one quarter cup sugar, process on "high" for five minutes, or until thickened. It's not a good preserving jam, but for an almost instant breakfast spread, it can't be beat. (Do it the night before - the jam is extremely hot when it comes out of the microwave).

As I try to limit the sugar intake on my constant diet called LIFE, I was a little shocked how much sugar this recipe calls for so I will cut back on my next batch. I agree with previous reviewer, it just seems a tad sweeter than it needs to be. Although compared to other blueberry jam recipes online, apparently there is a certain amount of sugar necessary not only to cure the tartness of the blueberries but to "gel" the jam. Very easy recipe...and definitely my eventual gateway to canning!

super simple! and so yummy!!! at first i was worried it would be too thin, but as it cooled in the refrigerator, it thickened perfectly! for my 2nd batch, i mashed more of the berries because i like more of the jelly. i also cut the sugar to 2 3/4 cup... so it was just a little less sweet. either way... very tasty jam!