Pluck the leaves close, discarding the stems; gather the leaves together closely with the fingers of the left hand, then with a sharp knife cut through close to the fingers; push the leaves out a little and cut again, and so continue until all are cut. Now gather into a mound and chop to a very fine powder, holding the point of the knife close to the board. Put the chopped herb into a cheese-cloth and hold under a stream of cold water, then wring dry. Use this green powder for dusting over a salad when required.
Salads, Sandwiches, and Chafing-Dish Dainties (1909).