Growing up Mennonite,I was intrigued by this recipe. I used white grape juice concentrate in this recipe because I could imagine the color being muddy if I used red grape juice. I also used 2/3 cup of sugar. The outcome was ho-hum. I tried diluting it a bit more and that helped. If I try this again, I will cut the lemon juice in half or omit it altogether. If you make this, try the red grape juice.