Mix the egg yolks and sugar in a large bowl.
Combine the cream, milk, vanilla seeds and vanilla pod in a saucepan. Cook over medium–low heat until just below boiling point. Remove from the heat. Pour just one ladleful of the liquid into the egg mixture, mix well and then add the rest of the milk. Mix completely to dissolve the sugar.
Rinse the saucepan and pour the egg and milk