Egg custard pie is one of the oldest known American dishes. Egg custard pie is very easy to make and is commonly made in most American and European households. A yummy pie, this dish is characterized by its soft creamy texture and the appetizing aroma of eggs. The main ingredients used to make this dish include eggs, unbaked pie crusts, sugar and milk. Often nutmegs are used to garnish this sumptuous dish. Egg custard pies are best consumed in its warm form. This dish is high on proteins, but it is also high on fats and calories.