Make the Dressing: In a small bowl, whisk together the mayonnaise, lemon juice, Old Bay Seasoning, salt, black pepper, garlic powder, sugar, and fresh dill until smooth and creamy.
¾ cup mayonnaise, 2 teaspoons lemon juice, ¾ teaspoon Old Bay Seasoning, ¼ teaspoon salt, ¼ teaspoon black pepper, ¼ teaspoon garlic powder, ¾ teaspoon granulated sugar, 1 tablespoon chopped fresh dill