3 dessert apples, about 350g/12oz before peeling
2 tbsp warmed, sieved apricot jam
1 tsp ground cinnamon
1-2 tbsp demerara sugar, to taste
100g/3陆oz light muscovado sugar
200g/7oz self-raising flour
75驳/2陆辞锄 butter, softened
3 free-range eggs, beaten