This recipe is from a very old Farmer's Weekly (or Farmer and Stockbreeder as it was then)
" 6 eggs, preferably brown ones
3 lemons
1/4 lb. brown sugar
1/2 pint brandy
Wipe eggs and place in a stoppered glass bottle, care being taken to avoid cracking or breaking them. Sqeeze over them the juice of the lemons, replace stopper and leave to stand, undisturbed for five days, when the eggs will be completely dissolved.
Add the sugar and shake until dissolved. Strain and pour onto the brandy. Bottle and allow to stand for a month before use.
This makes an excellent pick-me-up for invalids and is much appreciated where solid food is barred.
Dose 2 spoonfuls."
Rosemary, you only have to add lemonade and you will have a "Snowball"