This section is from the book "The New Cyclopaedia of Domestic Economy, and Practical Housekeeper", by Elizabeth Fries Ellet. Also available from Amazon: The New Cyclopaedia of Domestic Economy, and Practical Housekeeper.
Neats' tongues cured with the whole root on look much larger, but have not any other advantage, being too hard to cut pleasantly when salted. If the root is to be removed, cut it off near the gullet, but without taking away the fat that is under the tongue. The root must be soaked in salt and water a night, and extremely well cleaned before it be dressed, when it is very good stewed with gravy; or it may be salted two days, and used for pea-soup. Having left the fat and a little of the kernel under the tongue, sprinkle it with salt and let it drain until the next day. Then for each tongue mix a large spoonful of common salt, the same quantity of coarse sugar, half as much saltpetre, a teaspoonful of ground pepper, and two cloves of garlic or shalot chopped very fine; rub it well in, and do so every day for a week; then add another large spoonful of salt. If rubbed daily, a tongue will be ready in ten days; but if only turned in the pickle, it will not be too salt in four or five weeks, but should not be kept longer. When to be dried, write the date of the day on parchment, and tie it on. Smoke three days, or hang them in a dry place without smoking. When to be dressed, boil the tongue extremely tender; allow five hours, and if done sooner it is easily kept hot. The longer it is kept after smoking, the higher will be the flavor; but in the estimation of many persons, they are best dressed out of the pickle; if hard, it may require soaking four or five hours.
Or:- Put the tongue into an earthen pan, rub into it a table-spoonful of saltpetre, a good handful of salt, and the same quantity of coarse brown sugar; allow the tongue to remain in the pickle for three weeks, and rub it over every day. Then take it out and put it into the meat-screen before the fire for two or three days, till, the pickle has entirely drained from it. Then sprinkle it over with bran, and hang it up in any part of the kitchen with the root-end uppermost; sew salt tongues up in coarse linen.
 
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