Instructions: Preheat oven to 190c/Gas Mark 5.

1 Gently heat the milk and cream together in a small pan. Beat together the egg yolks and sugar until pale, and gradually pour over the warmed liquid stirring until combined.

2 Return this to the pan with the mashed potato, whisk together and pour into a gratin dish. Transfer this to a ban-marie and bake for 10-12 minutes. Serve.

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