Begin by making the crumble - measure out all the dry ingredients and mix well
Melt the butter in a saucepan over medium heat until fully melted then add to the dry mixture
Mix well until the crumble clumps togethor. Place in the fridge to cool until ready to assemble
Preheat the oven to 200℃
Peel and core the apples
Dice into small chunks then toss together with the sugar, cinnamon and cornflour
Line a 10" x 8" dish with the apples, then crumble the cooled crumble topping over the apples evenly
Cook for 35-40 minutes until the fruit is bubbling underneath and the top is golden and crisp. Let cool for 10 minutes before serving.
To make the custard - in a saucepan, place the cream and milk on a medium high heat until it starts to bubble at the edges
Whisk together the egg yolks and the sugar until pale
Add the hot cream and milk mixture, in thirds whilst continually whisking
Palce the mixture back on the heat in the same saucepan, adding the vanilla and whisk contiuously until thickened
Pour the fresh custard over the apple crumble and enjoy!