SALT AND VINEGAR POTATO SALAD

Steps:

• Toss together onion, 2 tablespoons vinegar, and 1/2 teaspoon salt in a bowl. Marinate at room temperature, tossing occasionally, until slightly softened and pink, about 45 minutes.
• Cover potatoes with salted cold water in a 5- to 6-quart pot, then simmer, uncovered, until just tender, 15 to 20 minutes.
• While potatoes cook, whisk together 2 teaspoons Old Bay seasoning with sugar, remaining 1 1/2 teaspoons salt, and remaining 1/2 cup vinegar in a small bowl.
• Drain potatoes in a colander, and when cool enough to handle but still warm, peel and cut into 1/2-inch-wide wedges. Toss warm potatoes with vinegar mixture in a large bowl. Add onion mixture and oil, tossing to combine. Add more Old Bay seasoning (to taste) if desired. Serve warm or at room temperature.
• Onion can be marinated, covered and chilled, up to 1 day.