This section is from the book "Miss Leslie's New Cookery Book", by Eliza Leslie. Also available from Amazon: Miss Leslie's new cookery book.
No sweetmeats can either look well or taste well unless the fruit and the sugar are of the best quality. As in all other branches of cookery, it is false economy to provide bad or low-priced ingredients. It has of late years been difficult to obtain very good sugar at any price, so much is adulterated with flour or ground starch. In the common powdered sugar the flour is so palpable that we are surprised at its having any sale at all; and the large quantity required to produce any perceptible sweetness renders it totally unfit for sweetmeats, or indeed for any thing else. The best brown sugar is better than this, having clarified it with white of egg. To do this, allow to every pound of sugar the beaten white of an egg, and a half pint of clear cold water. Having poured the water on the sugar, let it stand to melt before it goes on the fire. Then add the white of egg and put in on to boil. When it boils, carefully take off the scum as it rises, and add when it is boiling hard another jill or quarter pint of water for each pound of sugar. Remove it from the fire when the scum ceases to rise, and let it stand for a quarter of an hour to settle. Strain, and bottle it for use. The best brown sugar thus prepared will make a good syrup; and good marmalade, when white sugar of the best quality is not to be obtained. But for the nicest sweetmeats use always, if you can, the best double-refined loaf.
In warm weather there is nothing better for a preserving fire than a portable charcoal furnace placed out in the open air; as in a room with the doors or windows shut the vapor of charcoal is deadly, and never fails to produce suffocation. Of whatever the fire is made, it should be clear and steady without smoke or blaze. Never use copper or bell-metal for either preserving or pickling. For all such purposes employ only iron, lined with what is called porcelain or enamel, but is in reality a thick strong white earthen, first made at Delft, in Holland. This lining will crack if the kettle is placed over a blaze, which it should never be. All sweetmeats should be boiled with the lid off. If covered, the steam having no means of escaping, returns upon them, and causes them to look dark and unsightly. When done, put the sweetmeats warm into jars or glasses, and leave them open a few hours that the watery particles may evaporate, but have them all pasted and closely covered before night. Do nothing to render your preserves hard, or firm, as it is called. It is better to have them soft and tender. The old custom of steeping them for days in salt and water, and then boiling them in something else to remove the salt, is now considered foolish, and is seldom practised.
Put up jellies and small sweetmeats in common tumblers, laying on the surface of each a double cover of white tissue paper cut exactly to fit, and then put on another cover of thick white paper pleated and notched where it descends below the edge, using always gum tragacanth paste, which you should keep always in the house, as it requires no boiling; and if in making it, a bit of corrosive sublimate (not larger than a cherry-stone) is dissolved with the ounce of gum tragacanth and the half pint of warm water, in a yellow or white-ware mug, and stirred only with a stick, the paste will never spoil, and if kept covered, will be found superior to all others. No metal must touch this cement, as it will then turn black and spoil.
Keep your sweetmeats always in a dry place. But if after a while you see a coat of mould on the surface, you need not throw them away, till you have tried to recover them by carefully removing every particle of mould, filling up the jars with fresh sugar, and setting them, one by one, in a bottle of water, and in this way boiling them over again. But if they have an unpleasant smell, and you see insects about them, of course they must be thrown away. To purify jars, clean and scrape them, and wash them thoroughly with ley and water, or with a solution of soda - afterwards exposing them to the sun and air for a week or more.
Jellies. - We have already given directions for various fruit jellies in the chapter on Fine Desserts. They are all made nearly in the same manner, using the juice of the fruit, and sufficient sugar to make it congeal and to keep it. Jellies should always be bright and transparent, and 34 therefore require the best and ripest of fruit and the finest of loaf sugar.
 
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