I'm not sure if it was the combination of the lemon juice and the orange juice or I just got ahold of some extremely tart cranberries because I ended up using a cup and a half of sugar in this recipe. I used 1 cup to begin with but after testing it was just too tart. I used 2 tablespoons cornstarch and water to thicken. Overall, this is a good tasting recipe. We enjoyed the orange flavor. Next time I might just leave out the lemon juice though and use all orange juice.