Bring 6 cups of water to a boil over high heat then add the potatoes and cook for 3 minutes then drain and set aside.
2 pounds Yukon Gold potatoes
Heat the butter and olive oil together in a large skillet set over medium heat, then add the potatoes.
2 tablespoons unsalted butter, 1 tablespoon olive oil
Sprinkle on the salt, pepper, garlic powder, onion powder and rosemary then stir to combine and let the potatoes cook without stirring them for 6-8 minutes or until they start to turn a light, golden color.
½ teaspoon kosher salt, ½ teaspoon ground black pepper, ½ teaspoon garlic powder, ½ teaspoon onion powder, ½ teaspoon dried rosemary
Flip them over and let them cook once again undisturbed for 3-4 more minutes.
Toss again then let them sit again for 3 more minutes or until the potatoes are as brown and crispy as you like then serve with fresh rosemary for garnish if desired.