Big Daddy's Grilled Blue Cheese-and-Bacon Potato Salad

INGREDIENTS

• 3 pounds baby red potatoes, cut in half
• 2 tablespoons olive oil
• 1 teaspoon salt
• 1 teaspoon freshly ground pepper
• 1 cup mayonnaise
• 1/4 cup chopped fresh parsley
• 1/4 cup white balsamic vinegar*
• 2 teaspoons sugar
• 2 teaspoons Dijon mustard
• 1 cup thinly sliced red onion
• 4 ounces crumbled blue cheese
• 6 bacon slices, cooked and crumbled