The Epicure's Almanac or Diary of Good Living
April 20th : ENGLISH CURACOA
Cut away the peel of Seville oranges very thin, until you have obtained half a dozen ounces of it; put these into a quart bottle, and then pour in a pint of genuine whisky; if this is not to be had, use strong rectified spirit, to be procured at any respectable distillery.
Cork the bottle down tightly, and let the rind remain infused for ten or twelve days, giving the bottle a good shake as often as you have an opportunity for so doing ; at the end of this period take out the orange peel, and fil the bottle with clarified syrup, shake it well with the spirit, and let it remain for three days.
Pour a tea-cupful of the liqueur into a mortar, and beat up a drachm of powdered alum and an equal quantity of carbonate of potash; pour this, when well mixed, into the bottle, shake it well, and in a week you will find the curacoa perfectly transparent, and equal in flavour to that imported from Malines, or any other place in the universe.