Strawberry Jam
Ingredients
Directions
Mash the strawberries with a wooden spoon or squeeze them lightly with your hand.
Place the mashed strawberries in a preserving kettle and cook for 15 minutes.
Add 1½ pounds of sugar for each quart of berries, stir well, and boil slowly for 25 to 30 minutes.
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
- Strawberries
- Provide the fruit flavor and pectin-bearing pulp that give the jam its body.
- Sugar
- Adds sweetness and helps the jam thicken and keep as it cooks down.
The step that matters
Boil slowly after adding the sugar. Sugar must dissolve fully before a slow boil, and the jam needs enough time at heat to reach a gel. Boiling too fast can scorch the sugar or make the jam set too firm.
“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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