01 - Bring a large pot of salted water to a boil. Add halved baby potatoes and simmer for 15 to 20 minutes until fork-tender. Drain in a colander and allow to cool slightly.
02 - In a mixing bowl, whisk together sour cream, mayonnaise, Dijon mustard, apple cider vinegar, garlic powder, onion powder, salt, and pepper until smooth and well blended.
03 - Transfer cooled potatoes to a large bowl. Add sliced scallions and most of the chopped chives, reserving a small portion for garnish.
04 - Pour the dressing over the potato mixture and gently toss until all ingredients are evenly coated.
05 - Sprinkle reserved chives over the top. Serve immediately or refrigerate for at least 1 hour to intensify flavors before serving.