Roll out the Pie Crust (1 package) on a floured surface.
Use a bowl to to cut out 6 - 8 circles.
Press the circles into a muffin pan to form cups. Put the pan into the fridge until you are ready to fill the cups.
In a large pot, mix together the Salt (1 pinch), Egg (4), Granulated Sugar (1/2 cup), and Evaporated Milk (1 1/2 cup).
Preheat the oven to 350 degrees F (180 degrees C).
Put the pot on the stove on the lowest heat and stir in one direction until the sugar has dissolved. Do not boil. Let it cool and pour the contents through a strainer.
Fill the crusts to about three quartes with the custard.
Bake for 20 minutes. Serve hot.