It’s hard to imagine a Thanksgiving feast without a bowl of glossy, candied sweet potatoes with pecans. Plus, we’ve mastered a genius trick that makes peeling these sweet spuds a breeze. When you boil the potatoes with their skins on, you can peel and slice them with ease after they’ve cooled. So you can put away your vegetable peeler and let the hot water do the heavy lifting. Cooking the potatoes brings out their natural sweetness, which is well complemented by the mixture of cinnamon…