Several years ago, my mother announced that we’d be having pre-prepared tubs of supermarket mashed potatoes with our Thanksgiving dinner. I gasped in shock. “But it’s Thanksgiving!” I cried. My mother ...

Does the amount of time your potatoes boil matter when it comes to making mashed potatoes? You bet it does. Undercook your potatoes and you’ll get unsmashable taters — but you probably already figured ...