Stone olives, using an olive stoner, and fill cavities thus made with green butter. Place small Dario moulds in pan of ice-water, and pour in aspic jelly mixture one-fourth inch dep. When firm put an olive in each mould (keeping olives in place by means of small wooden skewers) and add aspic by spoonfuls until moulds are filled. Chill thoroughly, remove to circular slices of liver sausage, garnish with green butter forced through a pastry bag and tube, yolks of hard-boiled eggs forced through a strainer, and red peppers cut in fancy shapes.
Green Butter. Mix yolk one "hard-boiled" egg, two tablespoons butter, one sprig parsley, one sprig tarragon, one small shallot, one-half teaspoon anchovy paste, one teaspoon capers, and one teaspoon chopped gherkins, and pound in a mortar; then rub through a very fine sieve. Season with salt and pepper, and add a few drops vinegar.