Makes 5-6 lb (2.3-2.7kg)
4 lb (1.8kg) strawberries
31/21b (1.6kg) granulated sugar juice of 2 large lemons
Include a few strawberries that are slightly underripe. Crush half the fruit (choose larger berries for this) in the base of a preserving pan. Add remaining fruit and cook gently for about 15 minutes to soften fruit and allow some of the water to evaporate.
Add the sugar and stir until dissolved, then add the lemon juice. Bring to the boil and boil rapidly for about 15-20 minutes. Draw off the heat and test for a set. Skim the surface and allow jam to cool for 30 minutes, to ensure an even distribution of the strawberries. Stir once, pour into warmed jars and cover.