Recipe by Jeff Mauro
Start to Finish: 50 minutes
1 lb. sweet potatoes, peeled and cut into 1-inch cubes
2 tbsp. distilled white vinegar
1 stalk celery, chopped
1/4 cup chopped red onion
1/4 cup mayonnaise
2 tbsp. pickle relish
1 tbsp. chopped fresh chives
1 tbsp. chopped fresh flat-leaf parsley
1 tbsp. whole-grain mustard
1. In a large saucepan, cover the potatoes with 1 inch of cold water; salt generously. Bring to a boil over medium-high heat. Reduce heat to medium. Simmer until the potatoes are just tender, about 10 minutes. Drain, then transfer to a large bowl. Sprinkle with the vinegar. Using a silicone spatula, gently toss the potatoes and vinegar.
2. In a medium bowl, mix the celery, onion, mayonnaise, relish, chives, parsley, and mustard; season with salt and pepper. Gently fold into the potatoes. Cover and chill until the flavors meld, about 30 minutes.