Homemade Blackberry Jam Recipe (Marionberry Jam)

Step 1

Place the berries, sugar, and lemon juice in a medium saucepan.

Step 2

Bring the berries to a boil over medium high heat. Reduce heat to medium and simmer to thicken, approximately 15 minutes.

Step 3

Use a potato masher or fork to mash the fruit as much or little as desired.

Step 4

The jam is done when it is thick and more of a clump when put on a cold spoon or cold plate and tilted. If it runs like honey, it is not thick enough yet and you need to heat it longer.

Step 5

Store in a jar in the refrigerator for up to three weeks. Or freeze.