Lightly grease outside of potatoes, cut small slit in top and bake at 425 degrees F for 45 minute or until soft. Let stand until cool enough to handle, about 15 minutes.
Cut potatoes in half lengthwise and scoop out cooked potato, leaving a very thin layer of potato. (Save cooked potato for mashed potatoes or hash browns.)
Brush outside and inside of skins with melted butter. Sprinkle inside with steak seasoning and Parmesan cheese.
Place on lightly greased baking sheet. Bake 8 minutes or until crisp and bubbly.
Fill with cheddar cheese and bacon. Bake 3 minutes or until cheese is melted. Top with a dollop of sour cream and sprinkle of chives.
Variation: Twice Baked Potato Fingers Bake 3 large (about 5-inch) potatoes for 1 hour; cool. Cut in half lengthwise, and then lengthwise in half again, making 12 long fingers. Scoop out and proceed as above.