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Mary Berry Strawberry Jam Recipe

Mary Berry Strawberry Jam recipe

Mary Berry’s strawberry jam is a classic preserve made by gently simmering strawberries with sugar and lemon juice until thick and glossy. It’s a traditional British jam recipe with a soft set and vibrant berry flavor, ideal for those who love homemade spreads.

Ingredients

  • Fresh Strawberries (1kg / 2.2 lbs, hulled and halved if large) – Choose ripe, fragrant berries.

  • Granulated Sugar (1kg / 2.2 lbs) – Helps the jam set and sweeten naturally.

  • Lemon Juice (2 tbsp, fresh) – Balances the sweetness and helps with setting.

Instructions

Step 1: Prepare the Strawberries

  • Wash and hull the strawberries, cutting large ones in half.

  • Place the strawberries in a large saucepan and gently mash a few with a potato masher to release juice.

Step 2: Add Sugar and Lemon Juice

  • Stir in the sugar and lemon juice.

  • Let the mixture sit for 15–30 minutes to help the sugar dissolve slightly and draw out more juice.

Step 3: Cook the Jam

  • Place the pan over low heat, stirring gently until all the sugar has dissolved (do not boil yet).

  • Once the sugar is dissolved, increase the heat and bring the mixture to a rolling boil.

  • Boil rapidly for about 10–15 minutes, or until the jam reaches the setting point (105°C / 220°F) on a jam thermometer.

To test without a thermometer:

  • Place a small plate in the freezer.

  • After 10 minutes of boiling, spoon a little jam onto the cold plate. Let it sit for 30 seconds, then push it gently with your finger.

  • If it wrinkles slightly, the jam is ready. If not, boil for another 2 minutes and test again.

Step 4: Skim and Jar the Jam

  • Remove the jam from the heat and skim off any foam from the surface.

  • Let the jam sit for 5 minutes to allow the fruit to settle.

  • Carefully ladle the jam into warm, sterilized jars, leaving a small gap at the top.

  • Wipe the rims, seal with lids, and allow to cool at room temperature.

Step 5: Store and Enjoy

  • Once cool, store the jars in a cool, dry place.

  • Refrigerate after opening and consume within a few weeks.