This is an old-world simple Elderflower Vinegar recipe, but rarely utilized nowadays, although well worth the slight trouble of making. It was well-known and appreciated in former days and often mentioned in old books; Steele, in The Tatler, says: 'They had dissented about the preference of Elder to Wine vinegar.'
One seldom has the chance of now tasting the old country pickle made from the tender young shoots and flowers. John Evelyn, writing in 1664, recommends Elder flowers infused in vinegar as an ingredient of a salad. The pickled blossoms are said by those who have tried them to be a welcome relish with boiled mutton, as a substitute for capers. Clusters of the flowers are gathered in their unripened green state, put into a stone jar and covered with boiling vinegar. Spices are unnecessary. The jar is tied down directly the pickle is cold. This pickle is very good and has the advantage of costing next to nothing.
Ingredients and Directions:
Take 2 pounds of dried flowers of Elder. If you use your own flowers, pluck carefully their stalks from them and dry them carefully and thoroughly. This done, place in a large vessel and pour over them 2 pints of good vinegar. Close the vessel hermetically, keep it in a very warm place and shake them from time to time. After 8 days, strain the vinegar through a paper filter. Keep in well-stoppered bottles.
The pickle made from the tender young shoots - sometimes known as 'English Bamboo' - is more elaborate. During May, in the middle of the Elder bushes in the hedges, large young green shoots may be observed. Cut these, selecting the greenest, peel off every vestige of the outer skin and lay them in salt and water overnight. Each individual length must be carefully chosen, for while they must not be too immature, if the shoots are at all woody, they will not be worth eating.
The following morning, prepare the pickle for the Mock Bamboo. To a quart of vinegar, add an ounce of white pepper, an ounce of ginger, half a saltspoonful of mace and boil all well together. Remove the Elder shoots from the salt and water, dry in a cloth and slice up into suitable pieces, laying them in a stone jar. Pour the boiling mixture over them and either place them in an oven for 2 hours, or in a pan of boiling water on the stove. When cold, the pickle should be green in color. If not, strain the liquor, boil it up again, pour over the shoots and repeat the process. The great art of obtaining and retaining the essence of the plant lies in excluding air from the tied-down jar as much as possible.