Can I skip the par-boiling step?
No. Par-boiling ensures the potatoes cook through and become tender inside before roasting, preventing a hard center. Without it, the outside will burn before the inside is done.
How do I know when the potatoes are done roasting?
They're ready when the coating is deep golden brown and crispy, and a fork pierces the potato easily. This typically takes 25–30 minutes at 400°F after par-boiling.
Can I make this ahead?
Yes. Coat the par-boiled potatoes up to 4 hours ahead, refrigerate, then roast. Add 5 minutes to roasting time if starting from cold.
What can I substitute for Pecorino cheese?
Parmesan (sharper flavor), Asiago (milder), or Grana Padano (similar to Pecorino) all work well.
Can I use regular potatoes instead of baby potatoes?
Yes, but cut them into 1.5-inch chunks for even cooking. Adjust par-boiling time to 10–12 minutes until just tender.