In a medium pot, cover the fingerling potatoes with cold water by an inch and stir in a pinch of kosher salt. Bring to a rolling boil, then reduce heat to a simmer. Cook until the potatoes are just tender enough to be pierced with a fork, about 15-20 minutes. Keep an eye on them; smaller potatoes will cook faster.
Once tender, drain the potatoes and let them sit in the colander for a couple of minutes to allow excess moisture to evaporate. You can also pat them dry. This step ensures a crispier finish. While the potatoes are drying, set your oven to 450°F.
Return the potatoes to the pot. Drizzle with olive oil, and sprinkle with garlic powder, chopped thyme, salt, and pepper. Toss gently to coat. Arrange the seasoned potatoes in a single layer on a baking sheet, leaving some space between them for even crisping.
With the bottom of a cup or a potato masher, press down on each potato until it's about ½-inch thick. If the potatoes stick, dab your masher with a bit of oil. This is where the magic happens, creating those lovely, crispy edges!
Slide the baking sheet into the preheated oven. Roast for 20-25 minutes, flipping halfway through, until you see a beautiful golden-brown crust form.
Sprinkle with chives for a pop of color and freshness right before serving. These potatoes are delightful on their own or with a side of sour cream or your favorite dipping sauce.