01 - Preheat grill to medium-high heat, approximately 400°F.
02 - In a large mixing bowl, coat the halved potatoes with olive oil, garlic powder, smoked paprika, dried thyme, sea salt, and black pepper until evenly coated.
03 - Thread seasoned potatoes onto skewers or arrange in a grill basket for even heat exposure.
04 - Grill potatoes for 25 to 30 minutes, turning every 7 to 8 minutes, until exteriors are crisp and charred while interiors are fork-tender.
05 - Transfer grilled potatoes to a platter and immediately garnish with chopped parsley and, if using, Parmesan cheese.
06 - Present as a hot side dish to complement grilled mains.