Raspberry Jam
Ingredients
Directions
Prepare
Mash the raspberries in a pot.
Cook the jam
Cook the mashed raspberries alone over medium heat for 20 minutes.
Add the white sugar and boil briskly for 10 minutes, skimming off any foam.
Seal
Seal the jam in sterilized jars.
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.
Photo for illustrative purposes only · Contact us to use it
Explore the science
What each ingredient does
- Red raspberries
- Provide the fruit bulk, flavor, and natural pectin that help the jam thicken.
- White sugar
- Sweetens the jam and, with boiling, helps it set and keep its texture.
The step that matters
Boiling briskly after adding the sugar. Sugar must dissolve and the mixture must reach a hard, rapid boil so pectin and sugar can set the jam. Too little boiling leaves it runny, while skimming removes foam that would otherwise cloud the jam.
“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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