Bought some sour grapes at the grocery. Oops. I searched for some recipes using soured grapes, but they involved sugar (eg. rolling the grapes in sugar). I don't think I want to go as far as making my own jam, and am putting some halved grapes in water in the refrigerator overnight to see if I can make some infused water. I may then add some Stevia to it. I'm also putting some grapes in the freezer to use as ice cubes. Anyone have any easy recipes or uses for a sour grape? Thanks!