Oh no! Not lumpy mashed potatoes! If you're looking for the fluffy stuff, just put them through a ricer. If you don't have a ricer, push the potatoes through a fine mesh colander using a spatula. It's as simple as that!
Curtis Stone’s Baked Mashed Potatoes with Pancetta
Melissa d’Arabian’s Mashed Potatoes
Curtis Stone’s Mashed Potatoes-Brussels Sprout Gratin