This is posted in response to a request from Fernygoat. It is from Christine Ferber's "Mes Confitures". Ferber doesn't use commercial pectin - instead you make your own apple juice, which supplies the pectin. The recipe does not say how much this makes, so the 6 half-pints yield is a guess on my part. Use the cold plate test to check the set as you are cooking it - when a drop of jelly placed on a cold plate "wrinkles" when you nudge it, it is done.