Description
James Martin’s Strawberry Jam is a traditional British preserve made by simmering ripe strawberries with sugar and lemon juice until thick and glossy. Known for its deep flavor and vibrant color, this jam uses no added pectin—just natural ingredients and a bit of patience.
Ingredients
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- 1kg fresh strawberries – Washed, hulled, and halved if large
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- 750g granulated sugar – Helps preserve and sweeten
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- Juice of 1 lemon – Provides acidity and helps set the jam
Instructions
Step 1: Prep the strawberries
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Wash the strawberries and remove the stems.
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Cut large berries in half for even cooking.
Step 2: Combine ingredients
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Place the strawberries in a large saucepan.
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Add sugar and lemon juice. Stir gently to coat.
Step 3: Macerate and heat
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Let the mixture sit for 20–30 minutes to draw out juice.
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Slowly bring to a simmer over low heat, stirring to dissolve the sugar.
Step 4: Boil the mixture
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Increase heat and bring to a rolling boil.
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Skim off any foam as it forms on the surface.
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Boil for 10–15 minutes, stirring regularly.
Step 5: Test the set
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Drop a small amount onto a chilled saucer.
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Push with your finger—if it wrinkles, it’s ready.
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If not, continue boiling and retest after 2–3 minutes.
Step 6: Fill the jars
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Carefully ladle the hot jam into sterilised jars.
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Seal with lids while hot, then allow to cool.
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Store in a cool, dark place or refrigerate once opened.