Making Creamy Grilled Potato Salad is simple if you follow these steps:

1. Preheat the Grill: Start by preheating your grill to medium-high heat.
2. Prepare the Potatoes: Wash the baby potatoes thoroughly, and cut them in half.
3. Season the Potatoes: In a large bowl, toss the halved potatoes with olive oil, salt, and pepper until evenly coated.
4. Grill the Potatoes: Place the seasoned potatoes on the grill and cook for about 15-20 minutes, turning occasionally, until they are tender and have grill marks.
5. Make the Dressing: While the potatoes are grilling, combine the mayonnaise, sour cream, Dijon mustard, apple cider vinegar, garlic powder, onion powder, salt, and pepper in a bowl. Mix well until smooth.
6. Combine Ingredients: Once the potatoes are grilled and slightly cooled, transfer them to a large bowl. Add the dressing, green onions, and chopped parsley.
7. Toss to Combine: Gently toss the potatoes with the dressing until well coated.
8. Chill: For best results, refrigerate the salad for about 30 minutes to allow the flavors to meld.
9. Serve: After chilling, give the salad a quick toss before serving.

By following these steps, you will create a Creamy Grilled Potato Salad that is sure to impress!