Mix a pint of mayonnaise, 2/3 cup dill pickle relish, 1 ounce lemon juice, pickle juice to taste and 2 tablespoons minced white onion thoroughly to achieve a consistent texture, and refrigerate. This basic tartar sauce recipe appeared on the Food Network and only takes five minutes of preparation time.
Alternatively, a pink peppercorn tartar sauce, makes a striking presentation with fish of the same color such as salmon. Combine 2/3 cup fat free mayonnaise, 1/3 cup fat free sour cream, 1/4 cup red onion (finely chopped), 1/4 cup chopped fresh Italian parsley, 2 teaspoons crushed pink peppercorns and 2 tablespoons drained capers in a small bowl. Season to taste with salt and pepper. Cover this mixture, and refrigerate for a minimum of one day.
To prepare some salmon with this pink peppercorn tartar sauce, preheat the broiler. Spray vegetable oil spray on two rimmed baking sheets. Cut the salmon crosswise into slices 1/4 inch thick. Places the slices in one layer on the baking sheets. Sprinkle with pepper and salt to taste, working in batches. When the salmon turns opaque in the middle (after about two minutes), pull it out of the oven. Cover the dish, and chill at least for an hour, preferably overnight.