Grill Outside the Box - Grit

Ingredients

• 2 pounds unpeeled fingerling potatoes or ‘Yukon Gold’ potatoes
• 1 medium onion, peeled and quartered
• 1-1/2 tablespoons extra-virgin olive oil, plus extra as needed to finish the salad
• Coarse salt (sea or kosher) and freshly ground black pepper, to taste
• 4 strips thick-cut bacon (about 6 ounces), cut crosswise into 1/4-inch slivers
• 1/4 cup white wine vinegar or distilled white vinegar
• 2 to 3 tablespoons sugar
• 1 tablespoon Düsseldorf-style mustard or Dijon mustard
• 1 tablespoon prepared horseradish