Of course homemade is always best, and that also goes for sauces. Have you ever seen how many ingredients are in those jars of tartar sauce at the store?! Crazy, and definitely unnecessary. This family recipe has only 5 ingredients and is delicious on white-fleshed fish.
1/2 c. mayonnaise
1/4 tsp. Worcestershire sauce
1/2 tsp. grated onion (or substitute dry minced)
1 T. chopped pickle
1 T. lemon juice
Stir together all ingredients, cover, and chill until ready to serve.