Make-Ahead Twice-Baked Potatoes

Preheat oven to 350degreesF. Wash potatoes and pat dry. Place potatoes, not touching, on a large baking sheet. You may need two baking sheets. Spray potatoes generously with non-stick cooking spray. Sprinkle outside of potatoes with a little salt. Bake 1 to 1-1/2 hours or until potatoes "give" when gently squeezed, indicating they are done. In large mixing bowl, add butter, cream cheese, salt and pepper and mix well. With a serrated knife, cut baked potatoes in half lengthwise, being careful to leave skins unbroken. With large spoon, scoop out the inside of potatoes, leaving a thin layer of potato attached to the inside of the skin. Place potato skin shells, skin side down, on the baking sheet used to bake the potatoes. Put scooped out potato in mixing bowl as you remove it and mix to combine with butter mixture, adding skim milk as needed to make potatoes the consistency of slightly stiff mashed potatoes. You may need a little more or less milk to get the final desired consistency. Using the palm of your hand to support the potato shell while filling, spoon and press potato mixture into each half potato shell. Return filled shell to baking sheet. Sprinkle with shredded cheese and pat cheese to make it adhere to the potatoes. TO SERVE IMMEDIATELY: Return baking pan of potatoes to oven and bake about 15-25 minutes until potatoes are hot and cheese is melted. TO FREEZE FOR LATER USE: Cover potatoes with plastic wrap and place baking sheet in freezer, leaving several hours until potatoes are completely frozen. Remove potatoes from freezer and wrap each potato in a resealable plastic sandwich bag. Place wrapped potatoes into one or more gallon resealable freezer bags. Store in freezer for up to 3 months. TO COOK FROZEN POTATOES: Preheat oven to 350degreesF. Place potatoes on baking sheet and loosely cover with aluminum foil. Bake about 45 minutes. Uncover and bake an additional 15 minutes or more until potatoes are hot. Do not over bake. This method keeps the potato skins firm and crisp. If time is short, place potatoes in microwave and cook on high about 10 minutes. Remove and then place in 350degreesF oven to finish cooking. IN A BIG HURRY: These potatoes can be completely heated from frozen state in the microwave, heating them just until they are hot. Potato skins will be softer than if cooked in the oven. OR, they can be defrosted in the microwave and reheated, uncovered, in a 350degreesF oven for 15-20 minutes or until hot.