4 dessert apples
1 unwaxed lemon, finely grated zest and juice
100²µ/3½´Ç³ú plain flour
1½ tsp baking powder
75g/2¾oz demerara or light brown sugar
100²µ/3½´Ç³ú caster sugar
½ tsp ground cinnamon
70g/2½oz cold butter, cut into small pieces
100²µ/3½´Ç³ú unsalted butter, at room temperature, plus extra for greasing
2 large free-range eggs