You might have guessed that this drink is awesome if you like grapefruit juice. The red cabbage gives a perfect peppery compliment and makes the color of this drink great to look at. I've had this drink 3 times now and its amazing every time. Props to The Big Book of Juices which informed me about this one.
Note that the food used here is red cabbage and not radicchio. I had trouble understanding the difference but this post really helped me out.