The only problem is cost. Pomegranates are expen$ive, usually much more than oranges. So when I ran about half a cup short of the juice I needed for a recent pomegranate jelly batch, I decided to experiment. They say necessity is the mother of invention, right? I juiced three Cara Cara oranges (I swoon over their grapefruit-pink flesh and light, sweet flavor) and added the liquid to my batch of pomegranate juice. I made my jelly as I normally would and the result was a smooth, tart and sweet jelly that would never betray me for having run short of pomegranate juice. Cara Cara oranges are so mild that I couldn't detect citrus in the jelly. But, I notice that the Cara Cara version is slightly less tart than my jars of straight-up pomegranate jelly.
Now what? Time to experiment! I want to push things a bit... I want to taste the orange in the pomegranate. I'll let you know how it goes!