Keeping Mustard.—(No. 427.)
Dissolve three ounces of salt in a quart of boiling water, or rather vinegar, and pour it hot upon two ounces of scraped horseradish; closely cover down the jar, and let it stand twenty-four hours: strain, and mix it by degrees with the best Durham flour of mustard, beat well together till quite smooth, and of the proper thickness; put into a wide-mouthed bottle, and stop it closely. For the various ways to flavour mustard, see No. 370.