Are you planning a Feast of the Seven Fishes for Christmas Eve? This would make a lovely dip to serve with raw vegetables. Another make ahead! Can't have too many of those during the holidays.
about 10 servings if you have other appetizers
1 (6 1/2-ounce can white solid-pack tuna fish, drained
2 anchovy filets
1 tablespoon anchovy oil
4 tablespoon chopped ripe olives
1/2 small onion, grated
1 clove garlic crushed
1/4 cup chopped celery
1/4 cup cubed cooked potatoes (Don't leave this out: contributes to smooth texture)
1/2 teaspoon Worcestershire sauce
Dash of Tabasco sauce
Juice of 1 small lemon
Freshly ground black pepper
1/2 cup mayonnaise
Put all ingredients into container of electric blender and blend until smooth. I use the food processor.