Preheat your oven to 425°F (220°C). Line a baking sheet with parchment paper and drizzle with 1 tablespoon of olive oil to prevent sticking.
Boil the potatoes in a large pot of salted water until fork-tender, about 15 minutes. Drain and let them cool slightly on the baking sheet.
Using a flat-bottomed glass, gently smash each potato to about 1/2-inch thick. You'll hear a satisfying crack as they flatten.
Drizzle the smashed potatoes with the remaining olive oil. Season with salt, pepper, and optional garlic powder for an aromatic touch.
Roast in the preheated oven for 20-25 minutes, flipping halfway through. Look for golden, crispy edges and a soft interior.
If desired, sprinkle with fresh rosemary and smoked paprika during the last 5 minutes of roasting for added flavor.
Remove from the oven once the potatoes are crispy and golden. The aroma of roasted potatoes and herbs should be enticing.
Serve immediately while the potatoes are still hot, ensuring the perfect balance of crispy texture and tender inside.