How to Make It
Preheat oven to 500°. Place oven racks in upper and lower thirds of oven. Coat 2 jelly-roll pans with cooking spray.
Place potatoes on a microwave-safe plate; microwave at HIGH for 8 minutes or until tender. Place potatoes in a bowl. Add 2 tablespoons oil, salt, and pepper; toss to coat. Divide potato mixture evenly between prepared pans. Using a spatula, flatten potatoes to about 1/2-inch thickness. Brush potatoes with remaining 1 tablespoon oil. Bake at 500° for 10 minutes. Turn potatoes; rotate pans from front to back and top to bottom. Bake at 500° for 10 minutes or until browned and crisp. Place potatoes on a serving platter.
Combine the sour cream and chopped chives in a small bowl, stirring with a whisk. Serve sour cream with potatoes.