Place potatoes in a large pot, cover with water, and bring to a boil. Cook for 20 minutes, or until fork-tender. Drain and let them rest for a few minutes.
Preheat the oven to 425°F and line a baking sheet with parchment paper.
Arrange potatoes on the baking sheet and use the bottom of a glass to flatten them.
Drizzle with olive oil and sprinkle with salt and pepper.
Bake for 30–40 minutes, or until crispy and golden.