Bake potatoes at 220ºC for 1 hour or until done. Cool slightly. Cut each potato in half lengthwise; scoop out pulp, leaving 1 cm thick shell. Reserve pulp for another use. Place potato shells on a baking sheet. Spray inside of shells with cooking spray. Bake at 220ºC for 8 minutes or until shells are crisp. Set aside. Cook bacon in microwave according to package directions; cool slightly. Chop into small pieces; set aside. Divide cheese evenly among the shells. Bake at 220ºC for 5 minutes or until cheese melts. Sprinkle evenly with bacon and chives. Serve with low-fat sour cream. Each serving is 1 stuffed potato skin and 1.5 tsps. sour cream Calories per serving: 106 (29% from fat)