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Prune Plum Jam in a bowl with a spoon and prunes around it, with jars behind the bowl

Prune Plum Jam

A friend of mine was kind enough to share fresh prune plums, right form the tree. Prune plums are especially amazing in Plum Pie, but in my case, I got more than I could handle, so I decided to make jam.
Course Canning, How To
Cuisine American
Keyword jam recipe, plum jam
Prep Time 20 minutes
Cook Time 1 hour
Total Time 1 hour 20 minutes
Servings 24 servings
Calories 225kcal



  • Rinse plums, cut plums into four pieces.
    Prunes cut into fourth all place into one bowl
  • Place plums in a pot, cover with sugar and let it stand overnight. During this time it will produce juice.
    Prunes covered in sugar
  • The following day, cook plums until boiled. Once they are boiled, turn off the heat. Repeat bringing to a boil, 5-7 more times. Between each time let plums completely cool. This process will help thicken the jam. 
    Prunes bing boiled in a pot over the stove top
  • When you bring the jam to boil for the last time, you should instantly place it into jars. Be careful not to burn the jam, stir the ingredients often, don't forget about it (if you have a timer in the kitchen, it may come handy).
    Prune Plum Jam in a pot

Canning Jam

  • For canning you would need to sterilize jars; here is how it’s done. Wash all jars and lids, preheat oven to 215F, place all jars and lids in the oven, keep them there until they are all dry.
    Jars in oven being sterilized
  • When you remove jars form the oven, they will be hot, place hot jam into the jars. Cover each one tight with a lid and turn jars upside-down for about an hour. 
    3 jars in a row with a funnel in one of the jars
  • Jam can be stored for several months in a cool place.
    Prune Plum Jam in a bowl with a spoon and prunes around it, with jars behind the bowl


Calories: 225kcal | Carbohydrates: 57g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 1mg | Potassium: 248mg | Fiber: 2g | Sugar: 55g | Vitamin A: 544IU | Vitamin C: 15mg | Calcium: 9mg | Iron: 1mg