Instructions

1. Prepare your jars by washing the jars and lids in hot water and drying them thoroughly.
2. Combine the crushed berries in a medium mixing bowl. I used 1 cup blackberries, 1 cup raspberries, and 2 cups strawberries.
3. In a separate larger bowl, whisk together the sugar and pectin. I like to use a large batter bowl so I can just pour the jam into my jars directly from it.
4. Add the berry mixture to the sugar and pectin and stir for three minutes, ensuring they are mixed well.
5. Ladle or pour the jam into into the jars, leaving about 1/2-inch of headspace at the top of each jar. Ball Freezer Jars have fill lines embossed on them to make it simple to gauge.
6. Place the lids on the jars and let them stand for 30 minutes before freezing to allow the jam to thicken.