Small Batch Blackberry Plum Jam
Blackberry Plum Jam is a delicious way to preserve the rich flavors of blackberry season and enjoy the sweetness of fresh plums all year round! This easy recipe uses simple ingredients and is perfect for beginners and experienced jam makers alike. Whether you have a plum tree in your backyard or picked up fruit from the grocery store, this jam will become one of your favorites!
Servings: 4 jars
Ingredients
- 2 cups fresh blackberries
- 2 pounds fresh ripe plums (any variety)
- 3 cups granulated sugar
- 2 Tablespoons fruit pectin
- Juice of 1 lemon
- 1 Tablespoons salted butter
Instructions
- Wash four 8-ounce jars in the dishwasher to sterilize them. Set aside.
- Wash and drain blackberries. Wash plums and slice them in half, removing the stone.
- Add the blackberries, plums, sugar, pectin, lemon juice, and butter in a medium saucepan over medium-high heat. Bring to a boil for 3 minutes.
- Reduce heat to medium-low and simmer for about 30 minutes or until a digital thermometer reads 220°F. Stir regularly to prevent the jam from scorching.
- Remove from the heat and allow to come to room temperature.
- Fill each jar, leaving 1/4-inch space at the top of each jar. Gently tap the jars on the counter to remove any air bubbles.
- Wipe the tops of the jars clean, then twist on the lids and store in the refrigerator for up to 3 weeks, in the freezer for up to 1 year, or preserve using the water-bath method, which will let them keep for 18 months in the pantry.
Notes
Storage & Make Ahead
- Store: Keep your opened jam jars in the fridge for up to 3 weeks. Just make sure the lids are tightly sealed!
- Freeze: Want to save some for later? Pour your jam into freezer-safe containers, leaving space at the top. It will keep well in the freezer for up to a year.
- Reheat: To enjoy it warm, microwave a spoonful of jam for a few seconds or let the jar sit at room temperature for a bit.
- Make Ahead: This jam is perfect for making ahead! Prepare a big batch and store it using the water bath method, so you can enjoy your jam for up to 18 months.
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