Also prepare the custard. To do this, pour 150 grams of milk into a saucepan, add 2 tablespoons of sugar and put on fire. It should be well warmed up, but not boiling. Meanwhile, pour vanilla pudding or corn starch into the remaining milk, mix well so that there are no lumps. Pour a thin stream into the milk and, stirring constantly, whisk the cream. Remove the cream from the heat, cover with cling film so that it touches, and leave to cool.