Indulge in Dad’s Creamy & Cheesy Au Gratin Potatoes, a delightful side dish that combines layers of tender Yukon gold potatoes, savory onions, and a luscious cheese sauce made from sharp cheddar, gruyere, and parmesan. This recipe is perfect for holidays or any family gathering, delivering rich flavor and creamy texture that will impress everyone at your table. With straightforward steps and easily accessible ingredients, creating this comforting dish is a breeze.