While boiling is the classic way to make your potatoes mashable, baking is a great alternative. As long as you give them enough time to soften properly, your potatoes will come out of the oven full of flavor and with minimal moisture. This is a great starting point for great mash. You can also add a halved bulb of garlic to the potatoes before baking. Then squeeze some baked garlic cloves into the mash for amazing, deep flavor.