Fishy Onion Dip
["1 cup oil", "1 egg yolk", "1 Tbsp. grated lemon rind", "1/4 c. mashed capers", "4 Tbsp. lemon juice", "6 anchovy", "2 tsp. grated onion", "1/2 c. drained flaked tuna", "Parsley sprigs"]
["Blend 1/4 cup oil, egg yolk, and 2 Tbsp. lemon juice.", "Add rest of oil gradually.", "Combine capers, rind, anchovy, tuna, remaining lemon juice and onion.", "Beat into egg mixture.", "Garnish with parsley sprigs.", "Chill.", "Yields 2 1/2 cups."]
["oil", "egg yolk", "lemon rind", "mashed capers", "lemon juice", "anchovy", "onion", "tuna", "Parsley sprigs"]