Lemon Preserve

One pound of loaf sugar, six eggs, leaving out two whites, juice of three lemons, rinds of two grated, one-quarter of a pound of butter. Put these into a saucepan, and boil gently over a slow fire till they become like honey. This will keep for months.

Source: Papers Past from Household Hints: Timaru Herald, Volume LXIV, Issue 3248, 28 April 1900, Page 2