1. Leave the skin on as they get supremely crispy.
2. Wash and dry the potatoes well. This helps in the oil and spices adhering well and turning them crispy.
3. You can choose a combination of baby potatoes or just the brown ones.
4. Use similar sized potatoes. I cut them in halves but you can leave them whole as well (will take more time).
5. Use a nice spice mix to liven up their delicious roasted flavor. Any spices that you like work.