How to Make Plum Jam - A Step-by-Step Guide

Plum jam is a sweet and flavorful spread that is perfect for spreading on toast, topping yogurt, or filling in pastries. Made from juicy, ripe plums and a few simple ingredients, this homemade jam is a delightful way to enjoy the flavors of summer all year long. Whether you have an abundance of plums from your garden or you picked up a surplus at the farmers market, making plum jam is a great way to preserve the fruit and enjoy it in a different form.

Making plum jam at home is a rela...

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Ingredients

  • 4 ½ cups pitted, chopped plums
  • ½ cup water
  • 7 ½ cups white sugar
  • ½ teaspoon butter (Optional)
  • 1 (1.75 ounce) package powdered fruit pectin

Information

  • Prep Time: 30 mins
  • Cook Time: 30 mins
  • Additional Time: 12 hrs
  • Total Time: 13 hrs
  • Servings: 96
  • Yield: 6 (half-pint) jars

  • Inspect 6 half-pint jars for cracks and rings for rust, discarding any defective ones. Immerse in simmering water until jam is ready. Wash new, unused lids and rings in warm soapy water.
  • Combine plums and water in a large pot over medium-high heat; bring to a boil. Reduce the heat to medium-low, cover, and simmer for 5 minutes. Stir in sugar, then add butter to reduce foaming if needed.
  • Increase the heat to high and stir constantly until mixture comes to a full, rolling boil. Quickly stir in pectin and return to a full boil. Boil, stirring constantly, for 1 minute. Remove from the heat; skim off and discard any foam.
  • Pack jam into hot, sterilized jars, filling to within 1/8 inch of the top. Run a clean knife or thin spatula around the insides of the jars to remove any air bubbles. Wipe rims with a moist paper towel to remove any residue. Top with lids and screw rings on tightly.
  • Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars 2 inches apart into the boiling water using a holder. Pour in more boiling water to cover jars by at least 1 inch. Bring to a rolling boil, cover, and process for 10 minutes.
  • Remove the jars from the stockpot and let rest on a cloth-covered or wood surface, several inches apart, for 12 to 24 hours. Press the center of each lid with a finger to ensure the lid does not move up or down. Remove the rings for storage and store in a cool, dark area.
  • Nutrition

    48 cal.

    • Sodium: 0mg
    • Total Carbohydrate: 12g
    • Dietary Fiber: 0g
    • Total Sugars: 12g
    • Vitamin C: 1mg
    • Calcium: 1mg
    • Potassium: 9mg