Make the custard. Mix the custard powder in a bowl with 2tbsp milk, to make a thick paste. Gently heat the rest of the milk in a pan, until just under boiling. Mix the custard together and place back in the pan. With a whisk, stir the custard mix over the heat until you have a thick custard. Cover and leave to cool completely.

In a separate bowl, melt the white chocolate. You can either do this over a bain marie, or just in the microwave keeping an eye on it. Leave to cool completely.

Whip the cream until just after soft peaks form. Mix together the custard and white chocolate in a bowl, and then fold in the whipped cream until you have a light, fluffy mixture.

You are ready to use this in other recipes.