Sauce Tartare
One cup of mayonnaise dressing; one tablespoon of chopped cucumber pickle; one tablespoon of capers; one teaspoon of onion juice. Make the mayonnaise rather more sour and with a little more mustard than for salad, and mix into it the capers and pickle. Grate one-half onion to secure the juice and add the amount required. Set on the ice until needed. The sauce should be quite thick when served.