What can you do when you need to make a holiday pie, but don’t have any sweet potatoes, pecans, or pumpkin in the house? The answer is simple. Take some of those russet potatoes that are almost always hanging around the house, cook them, mash them, and turn them into a delicious Ice Potato Pie. This pie is every bit as delicious as a sweet potato pie. The only difference is that it’s a little lighter in color.