300驳/10陆辞锄 Bramley apples, peeled, cored removed, cut into 2cm/戮in pieces
400g/14oz blackberries
175g/6oz blackberry jam
1 lemon, zest and juice
150驳/5陆辞锄 golden caster sugar
175g/6oz self-raising flour
150驳/5陆辞锄 butter, softened
3 free-range eggs, lightly beaten