Preheat the oven to 180C, and line a 15cm baking dish or tin. Mix the eggs and sugar together until light and leave a trail when dripped from a whisk.

Meanwhile simmer the milk and butter together, then whisk into the egg mixture. Fold in the flour, baking powder and a pinch of salt. Tip into the baking dish.

Peel, core and slice the apples. Layer on top of the cake batter and bake for 40-50 minutes, or until golden brown and a skewer inserted comes out clean. Leave to cool before serving.