We have wonderful Italian plum trees all throughout our neighborhood. Our first year here we picked 34 pounds of plums! I got a recipe from the Fancy Pantry for Plum and Orange Liqueur Jam. After many many batches I adjusted the recipe to the following and really really love it. It doesn't set really thick, but it tastes fabulous and it is awesome to use with JanctC-KY's Easy Plum Sauce Recipe #172468. NOTE: This is a great recipe for those who are intimidated by or want to try canning, BUT this method of canning is only good for fruit jams with an acid and lots of sugar. Do NOT use this method for canning other foods! When the jam is boiling it will splatter everywhere. I wear a long sleeve shirt and use an oven mitt when stirring the jelly. I also cover the rest of the stove and nearby wall with tin foil. It makes clean up a whole lot easier. EASY JELLY TEST...Place small plate in freezer to chill. Spoon some hot jam onto chilled plate and return to freezer for about 30 seconds to 1 minute. Remove from freezer and run your finger through the jam. If the jam does not fill in the space left by your finger, it's done. I like this jam a bit runny, so I don't worry if it fills in slightly.