In a mixing bowl, whisk together egg yolks, sugar and cornflour and set aside. Place coconut milk, vanilla and white sugar in a heavy non-stick saucepan and heat them until just up to a simmering point. Do not let it boil.

Take 1/4 cup of the milk, let it cool slightly then whisk them into the egg yolk mixture. Whisk constantly then add in another 1/4 cup of the milk mixture, whisk again then add in the rest of the milk mixture. Pour the mixture back into the saucepan and return to the stove

Whisk them continuously for 2 to 3 minutes till you achieve a no curdle thick custard. Transfer into a bowl and cover a with cling wrap onto the surface of the custard to avoid skin forming. Keep them in the fridge for a few hours until set.

Make the Coconut palm sugar filling. Put palm sugar, pandan leave and water in a wok and bring to boil. Once the palm sugar has dissolved add in the coconut and cook on low heat continuously stirring for 10 minutes or till the coconut coats to the sauce and there are no liquid left. Discard the pandan leaves and set aside to cool.

Spoon the custard into a piping bag fitted with small star-shaped or round nozzle.

Once the profiteroles are cooled enough, cut them into half and pipe the coconut cream patisserie then spoon in the palm sugar coconut on the top. Put the profiteroles lid on.

Drizzle with a little bit of icing sugar. Serve straight away.