Prick the candy potatoes throughout with a fork, then place them on a baking sheet lined with foil or a silpat mat. Bake till the potatoes are fork tender, about 1 hour or so, relying upon the scale of your potatoes. Take away from the oven and let sit till cool sufficient to deal with, about 5 minutes. Peel and discard the skins (they need to come off simply together with your fingers), break the potatoes in giant chunks with a fork, then place the chunks into the bowl of a standing mixer fitted with the paddle attachment or a big mixing bowl.