If mayo-free salads are your thing, this no-mayo potato salad with vinaigrette is about to become a staple. Warm potatoes soak up a simple mix of olive oil, vinegar or lemon, mustard, garlic, salt and pepper for a bright, tangy side that travels well and stays safer at picnics and potlucks. It pairs beautifully with grilled meats, German-style plates or any meal that already has something creamy on it. See how this version links to our German and Austrian potato salad, plus the full master...