Bring the milk with the sliced vanilla pod and sugar to the boil and let it steep a little. Stir the eggs and egg yolks into the cooled milk.
Pour the caramel sauce approx. 2 - 3 mm high into the rinsed molds or flan glasses and pour in the milk and egg mixture. Cook in the water bath for approx. 45 - 60 minutes at 150 ° C in the oven on the lowest rack.