To Prevent Mold on the Top of Glasses of Jelly
October 27th, 2016
Lay a lump of paraffine on the top of the hot jelly, letting it melt and spread over it. No brandy paper and no other covering is necessary. If preferred the paraffine can be melted and poured over after the jelly is cold.
Source: The White House Cookbook, F.L. Gillette