The Secret to Mashed Potatoes

My mother is the foundation for my love of cooking.  I recently helped her in the kitchen for one of her famous dinner parties.  While working on the mashed potatoes, one of my cooking inspirations told me a secret.  When you are "mashing" your potatoes in a stand mixer, the last ingredient should be two egg yolks.  Just make sure your potatoes are not too hot, you don't want to cook the yolk.  Trust me, the yolks seal the deal.