Ingredients
2 pounds red potatoes (about 7 medium), cut into 1-inch cubes1 pound sweet potatoes (about 2 medium), peeled and cut into 1-inch cubes1/4 cup red wine vinegar1 tablespoon spicy brown mustard1-1/4 teaspoons salt1/2 teaspoon pepper1/2 cup reduced-fat mayonnaise1/4 cup 2% milk2 celery ribs, chopped1 small red onion, chopped1/3 cup minced fresh parsley
Preparation
Place red potatoes in a large saucepan; add water to cover. Bring to a boil. Reduce heat; cook, uncovered, until tender, 10-15 minutes. Drain; place in a large bowl. Repeat with sweet potatoes; add to red potatoes.
Whisk together vinegar, mustard, salt and pepper; toss with potatoes. Cool slightly.
In a small bowl, whisk together mayonnaise and milk; stir in celery, onion and parsley. Stir gently into potato mixture. Serve immediately or refrigerate and serve cold.
