Preheat your oven to 425°F (220°C).
Wash and dry the potatoes thoroughly.
Using a sharp knife, score each potato by making crisscross cuts about 1/4 inch deep across the top.
Place the potatoes on a sheet pan.
In a small bowl, mix together the olive oil, salt, pepper, garlic powder, and rosemary.
Brush the olive oil mixture generously over the scored potatoes, making sure to get the oil into the cuts.
Bake in the preheated oven for 35-40 minutes, or until the potatoes are crispy on the outside and tender on the inside.
Remove from the oven and let cool slightly before serving.
Variations & Tips
For a cheesy twist, sprinkle some grated Parmesan or cheddar cheese over the potatoes during the last 10 minutes of baking. If you have picky eaters, consider using different seasonings like paprika or onion powder to suit their tastes. You can also add a sprinkle of bacon bits or chopped green onions for extra flavor. For a vegan option, use nutritional yeast instead of cheese for a savory kick.