2 dessert apples, peeled, cored and sliced into thin wedges
1 tbsp lemon juice
225g/8oz plain flour
2 level tsp baking powder
140g/5oz golden caster sugar
½ tsp ground cinnamon
1½ tbsp demerara sugar
½ tsp salt
125²µ/4½´Ç³ú butter, softened, plus extra for greasing
3 free-range eggs, at room temperature, beaten
5 tbsp full-fat milk