Take every opportunity to teach our new generations "where it truly comes from". Perfectly shaped store bought eggs usually have nothing to be perfect about.
Separate 3 egg yolks and place in a bowl . Add about 2 large tablespoons of corn starch and simply whip using a wire whip. A thick and pasty consistency is normal . Put aside
Heat about 500ml of milk with 1/3 cup of sugar ( or 1/2 cup depending how sweet you like it ), and a small capful of vanilla extract. Shut milk off as soon as it begins to steam a bit ( do not boil or make milk to hot )
Whisk about 1/2 of the warm milk in the yolk/starch mixture and mix well .
Place the milk back on very low heat and whisk in the egg mixture .
Mix it well and allow custard to cool down a bit. Get your little helper to hold a large zip lock bag ( if pastry bag not available). Put aside
In a separate bowl add some nutella and cold milk till you have a thick chocolate sauce .
Place this chocolate sauce in another zip lock bag.
Cut the tips on both the nutella and custard bags. DON'T cut corner to big - you can always cut it more .
Get some serving cups or champaign glasses and have fun filling the layers with chocolate and custard. Begin with the custard on bottom - best to use something transparent .