# Set the white of the egg aside.
# Put the yolk, cold
milk,
flour,
cocoa and
sugar in a pot, blend until get it smooth.
# Place the mixture over medium heat, and cook it by stirring until reaching to the right consistency.
# Whisk the white of the egg with some salt, get it as snow, and then add some pudding mixture in it to make it liquid, add it into the pot. Remove the pot from the stove, add vanilla and mix well.
# Place a piece of cake on the floor of each bowl, and pour the hot pudding on it.
# After refrigerating it, garnish the surface with coconut or
hazelnut or pistachio, serve them.