Red Raspberry Jam
Ingredients
Directions
Boil the raspberries for 20 minutes.
Add the sugar and continue boiling until thick.
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
- Raspberries
- Provide the fruit, pectin and acidity that form the jam's body and flavor.
- Sugar
- Sweetens the jam and, with heat, helps it thicken and set as it reduces.
The step that matters
Boiling until thick. Sugar and pectin set only at the right concentration. Stopping too early leaves runny jam, while boiling too long can scorch the sugar and dull the fruit flavor.
“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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