The kids and I made violet jelly today with the tons of violets out in the yard. They collected a whole basket full. You get the liquid for the jelly by stuffing a canning jar full of them, pouring boiling water up to the top and closing it until all the pretty color (and Vitamin C) leeches out into the water. Then you just follow your jelly recipe. I found many recipes just searching the Internet. I wasn't too sure how this would turn out when I first heard about it, but the kids love the result and we sure go through a lot of jelly in this house!