An excellent FROSTING may be made without eggs or gelatine, which will keep longer and cut more easily, causing no breakage or crumbling and withal is very economical.
Take one cup of granulated sugar; dampen it with one-fourth of a cup of milk, or five tablespoonfuls; place it on the fire in a suitable dish and stir it until it boils; then let it boil for five minutes without stirring; remove it from the fire and set the dish in another of cold water; add flavoring. While it is cooling, stir or beat it constantly and it will become a thick, creamy FROSTING.
The Whitehouse Cookbook, by Mrs. F.L. Gillette (Year 1887)