Step 1

Preheat oven to 180 degrees C (fan).

Step 2

Peel, core and slice the apples and arrange in a baking dish.

Step 3

Sprinkle over the caster sugar and cinnamon.

Step 4

In a mixing bowl, cream together the butter and caster sugar.

Step 5

Add the eggs and flour and beat well until combined.

Step 6

Add the baking powder and vanilla extract and mix in.

Step 7

Spoon the sponge mix over the prepared apples, smoothing it down with the back of a wooden spoon. Don't worry too much about covering all the apples, the sponge will spread as it bakes.

Step 8

Bake for 30 to 35 minutes until golden brown and risen. Dust with icing sugar and serve with cream, custard or ice cream.