Blueberry Jam
Created by Tisme on June 26, 2017
- Servings: 4
- Prep Time: 10m
- Cook Time: 20+m
- Recipe #26314
Ingredients
- 550 grams caster sugar (2 1/2 cups)
- 500 grams blueberries
- 20 ml lemon juice (1 teaspoon)
- 40 ml white wine vinegar (2 teaspoons)
How to Make
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Step 1: Have sterilized jars and lids ready.
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Step 2: Preheat your oven to 100°C then place a small plate in the freezer.
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Step 3: Cover a large baking tray with a sheet of baking paper. Spread the sugar on the tray and warm in the oven for 10 minutes.
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Step 4: Meanwhile, place the berries, lemon juice, vinegar and 1/4 cup water in a large pan. Add the sugar, stirring over low heat until it fully dissolves. Increase heat until mixture is at a slow boil. When scum forms on the surface, remove with a slotted spoon. After 20 minutes, test to see if it has reached a set - place a spoonful onto a chilled plate and push mixture with your finger, if it wrinkles and a skin forms, then it's ready; if not, wash plate 9 in cold water) and return to freezer. Cook jam 10 minutes, then test again. Continue until jam reaches a set.
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Step 5: Pour into sterilised jars and seal.