Mashed potatoes are a classic side dish, and Nigella Lawson's garlic and Parmesan version take it to the next level. They're so good, even, that the culinary queen broke one of her cooking rules ...

Mashed potatoes are a fan-favorite, especially around the holidays, and everyone has their own spin on the classic side. I decided to test recipes by Guy Fieri, Ina Garten, and Alton Brown to find ...