A mayonnaise-based sauce with chopped capers, dill pickles, lemon juice, and Dijon mustard. Chill briefly before serving with cooked fish.
Yield approximately 1¼ cups, about ten 2-tablespoon portions. Use commercial mayonnaise and ready-to-eat ingredients. Chill 15 minutes after mixing. Refrigerate covered up to three days or the earlier ingredient limit; do not freeze.