So very glad I found this recipe! It is the same recipe my mother used when I was a child. A few differences in the steps (and no mention of putting dyed Easter eggs in it) but I think the outcome will be what I remember.
This is the authentic Portugese Custard Tarts recipe, used by a bakery in Lisbon. Use the 6 tips provided in the recipe to make a perfectly crisp and nicely browned custard tart without hassle.(Baking Bread Tips)