Combine the milk, cream, orange and lemon rind, cinnamon and vanilla bean seeds in a medium sized saucepan and bring to the boil. Turn off the heat and set aside

In a separate bowl, whisk egg yolks and sugar until thick and pale. Pour the slightly cooled milk mix into the egg mix and combine well with a whisk

Return mix back into the saucepan, heat and stir with a wooden spoon until thick and mixture coats the back of a wooden spoon - do not over heat or boil as this will curdle the egg

Strain the mixture through a fine sieve into a clean jug. Pour mixture into ramekins and refrigerate for 3 hours or until set

Sprinkle evenly with sugar and caramelise with a blowtorch or place under a hot grill