Brandy+blackberries+kumquats=delicious. Blackberries are often paired with orange, but the slightly bitter--but still bright--citrus flavor of whole candied kumquats makes this jam special (plus a bonus recipe for blackberry-infused brandy!).
Canning mixed fruit is easy and makes a great beginner project. It provides you with a taste of summer all year, and can easily be adapted to what you have on hand. This time I had beautiful, BIG, nectarines