This section is from the book "A Treatise On Beverages or The Complete Practical Bottler", by Charles Herman Sulz. Also available from Amazon: A Treatise On Beverages.
A vanilla extract of superior aroma we prepare according to the following rules:
Take eight ounces finely sliced vanilla beans, one and one-half ounces of bruised cinnamon, and one and one-half ounces of cassia. Macerate in a mixture of two pints of alcohol, and two pints of water for twenty-four hours on a water bath, applying gentle heat. Let cool, and when cold filter through filtering paper, and preserve the liquid in well-stoppered bottles.
 
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