Raspberbt Jam
Ingredients
Directions
Cook the fruit
Gently bruise the raspberries with the back of a wooden spoon.
Boil the raspberries over a brisk fire for 25 minutes, stirring occasionally.
Add sugar and boil
Add half the weight of the raspberries in sugar and stir until dissolved.
Boil the mixture quickly for 10 minutes, stirring and skimming regularly.
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, flavor and body of the jam.
- Sugar
- Sweetens the jam and, with boiling, helps it thicken and keep.
The step that matters
Boiling the mixture quickly after adding the sugar. Once the sugar is in, the jam must boil hard and be stirred and skimmed often, because it can scorch and stick at this stage. Boiling drives off water and concentrates the sugar so the jam thickens as it cools.
“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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