Mince some cold roast or boiled chicken in a chopping bowl, then mix the
gravy with it, adding a few hard-boiled eggs, which have been minced to
a powder. Mix all into a soft paste. Then cut thin slices of bread,
spread the chicken between the slices (if desired you may add a little
mustard); press the pieces gently together.
CHICKEN SANDWICHES WITH MAYONNAISE
Grind up chicken in meat chopper. To each cup of chicken add one
tablespoon of mayonnaise, and one tablespoon of chicken soup. Mix into
soft paste, and put in finger-rolls.