The Book of Household Management. Mrs. Beeton

adding this a little at a time; rub down with the back of a spoon any lumps that may appear, and do not let it be too thin. Mustard may be flavoured in various ways, with Tarragon, shalot, celery, and many other vinegars, herbs, spices, &c.; but this is more customary in France than in England, as there it is merely considered a "vehicle of flavours," as it has been termed.

      PICKLED NASTURTIUMS (a very good Substitute for Capers)

      482. INGREDIENTS.—To each pint of vinegar, 1 oz. of salt, 6 peppercorns, nasturtiums.

      Mode.—Gather the nasturtium-pods on a dry day, and wipe them clean with a cloth; put them in a dry glass bottle, with vinegar, salt, and pepper in the above proportion. If you cannot find enough ripe to fill a bottle, cork up what you have got until you have some more fit: they may be added from day to day. Bung up the bottles, and seal or rosin the tops. They will be fit for use in 10 or 12 months; and the best way is to make them one season for the next.

      Seasonable.—Look for nasturtium-pods from the end of July to the end of August.