Ingredients

225g self-raising flour
2 tsp ground cinnamon
225g Bramley or Granny Smith apples, peeled, cored and diced
100g sultanas
115g unsalted butter, diced and chilled, plus extra for greasing
115g light brown sugar
1 large egg, beaten
6-8 tbsp milk
2 tbsp demerara sugar

Method 

Heat the oven to 180C/160C fan/ gas 4. Grease and line a 20cm cake tin with baking paper.

Mix the flour and cinnamon together in a large bowl. Add the butter and rub into the flour using your fingers, until it looks like breadcrumbs. Stir in the light brown sugar. Beat in the egg followed by 6 - 8 tbsp of milk until you get a smooth, thick batter.

Add the apples and sultanas and mix to combine. Scrape the batter into your prepared tin and gently level out. Sprinkle over the demerara sugar and bake in the oven for 30-40 minutes or until golden and a skewer inserted into the middle comes out clean.

Allow to cool in the tin for 15 minutes and then carefully turn out onto a wire rack to cool further.

Best served still warm with a little custard. (I like a lot of custard, so thick you can slice it)