Bring the water with the vanilla pods to the boil and remove from the heat.
Leave to infuse for 10 minutes.
Strain and bring to the boil in a saucepan with the sugar.
Pour over half the egg yolks and mix well, Add the remaining egg yolks and heat together, all the while stirring with a spatula.
Do not allow the mixture to boil.
Once the mixture reaches a ‘nappage’ stage, remove from the heat and pour over into a large mixing bowl.
Whisk on a low speed to allow the mixture to cool.
Once the mixture has reached a temperature of approx.
30°C, gradually add the butter.
Mix until you have a glossy cream.