Preheat oven to 425 degrees F. Wash potatoes thoroughly.
Place potatoes in a large pot of salted water. Bring to a boil and cook for 20 minutes, until fork tender. Drain and let them cool slightly.
Lightly grease a sheet pan with olive oil. Place boiled potatoes onto the pan, spaced apart.
Use the bottom of a glass and gently smash each potato. Flatten the potatoes to about a ¼ inch thickness.
In a small mixing bowl, combine the olive oil, garlic powder, onion powder, salt, and pepper. Brush half of the mixture over the smashed potatoes.
Place pan in a preheated oven and bake for 15minutes. Flip the potatoes, brush with the remaining olive oil mixture, and continue to bake for 15 more minutes, until golden brown and crispy.
Garnish with additional sea salt and fresh herbs, if desired.