Wow! I made this with pure, unsweetened cranberry juice, and so I used 1 cup juice and 1 cup water, which is what I heated. Since it was unsweetened, I used 1/3 cup sugar. Since I had also had some pure unsweetened wild blueberry juice, I made a blueberry jelly too. (I used 2/3 juice, 1/3 water for that one, and 1/4 cup sugar.) Soooo good and refreshing.