One candy that my mother makes nearly every Christmas and is my youngest sisters favorite is Potato Candy. Yes, made from real mashed potatoes you will be surprised how delicious they are.
1/4 cup potatoes (leftover and instant will both work, but real potatoes do taste better)
5 cups confectioners sugar
1 tsp. vanilla
Mash potatoes (do not add butter, salt, or milk), add vanilla, and confectioners sugar at least 5 cups, but keep adding until stiff dough is formed (please note that it will take a lot of confectioners sugar to form a stiff dough, at one point potato mixture WILL seem to liquefy this IS normal, just keep adding confectioners sugar until mixture comes back together).
Once dough has formed place confectioners sugar on your rolling surface (I have a marble island that works perfectly for this, but you can use waxed paper on your counter) and begin rolling dough, roll until 1/8 inch thick. Spread a layer of peanut butter onto the dough (I suggest that you use a moderate amount of peanut butter...too much and the peanut butter oozes out the sides, not enough and the ratio of dough to peanut butter is off). Roll up like a jelly roll, wrap with waxed paper or plastic wrap, and refrigerate overnight. Cut into single serve pieces and enjoy. Leftover pieces can be stored between layers of plastic wrap in the refrigerator.