Blackbeery Jam
Ingredients
Directions
Mash the blackberries in a bowl.
In a separate bowl, combine the mashed blackberries with the sugar.
Boil the mixture for 30 to 45 minutes, stirring occasionally.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
What each ingredient does
- Blackberries
- Provide the fruit base, flavor, and natural pectin-bearing bulk that forms the jam's body.
- Sugar
- Sweetens the jam and, as it dissolves and concentrates, helps it thicken and preserves it.
The step that matters
Boiling the mixture. Boiling concentrates the sugar and fruit so the jam thickens. Stirring prevents the sugar and fruit from scorching on the bottom of the pan.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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