Place 1 cup mayonnaise, ¼ cup French dressing, 2 tablespoons sweet pickle relish, 1 teaspoon white wine vinegar, ½ teaspoon paprika, ¼ teaspoon garlic powder, and ¼ teaspoon onion powder in a small bowl. Stir until all the ingredients are thoroughly combined.
Cover the bowl and refrigerate for at least 2 hours. For the best flavor, refrigerate for up to 24 hours before serving.
Serve immediately or store covered in the refrigerator for up to 2 weeks.