Blackberry Roasted Plum Preserves

 

4 C. blackberries

2 C. plums, halved, pitted (I used sugar plums)

4 C. sugar

tap here

1 lemon, zested and juiced

 

Heat oven to 400 F. Place halved, pitted plums on baking sheet. Sprinkle with a T. or two of sugar and roast for 10-15 minutes. This just gives the jam a nice toasted flavor. Place blackberries, plums, sugar, lemon juice and zest in a large saucepan or dutch oven. Cook on high heat to a boil. Boil for 2-3 minute and reduce to medium/medium-low heat to cook for an additional 15 minutes or so. Use a candy thermometer to heat to 220F before removing from heat. You can test the jam by placing a small amount onto a plate that has been in the freezer for 5+ minutes. It should gel after a couple minutes to the preferred consistency. Can per canner instructions, if desired. Cool and enjoy!