Strawberry Jam
Ingredients
Directions
Prepare
Remove the hulls from the strawberries.
Rinse the berries in cold water and drain well.
Cook the jam
Place the strawberries in a kettle over medium heat.
Boil for 30 minutes.
Add the sugar and boil for an additional 5 minutes.
Jar and store
Fill small jars with the jam, seal, and store in a cool place.
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 the bulk of the jam.
- Sugar
- Adds sweetness, helps the jam thicken, and preserves it by binding water.
The step that matters
Add the sugar and boil for an additional 5 minutes. Sugar binds water and raises the concentration of the cooking liquid, which helps the jam thicken and keep. Adding it at the right point and boiling only the stated time helps avoid a runny or overcooked 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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