What a twit I've been. I'm in the middle of making blackberry and Apple jam, and instead or adding my 300 mls of water I've added 3 x 300 mls. Why? I 've know idea. Of course it won't set, but am I able to rescue it?
Can you not bring it to a rolling boil over a strong heat whilst consistently stiring? I've never made Jam but if i did too much water in a risotto that's what i'd do.