Adapted from The Cookie Book, edited by Ruth Berolzheimer, 1949. I haven't tried these, but they seem to be a good way to use up egg yolks, both hard boiled, and raw. BTW, you can freeze any raw egg white in freezer safe containers as is, just defrost in the fridge overnight to use in meringues or angelfood cake. I would not advise freezing cooked egg white. Feel free to halve the recipe if that is more convenient for you. 1 1/2 cups butter equals 12 oz. I am not sure of the preparation time, but have excluded the time for boiling the eggs. The cooking time is for one batch.