This is potato gratin the way it should be: rich, melt-in-your-mouth creamy, and loaded with flavor. We layer russet potatoes with Gruyère cheese to add earthy nuttiness, while a mixture of cream and ...
For the casserole: Preheat the oven to 375°F ... For the topping: In a small bowl, stir together the fried onions, potato chips, and parmesan. Sprinkle the mixture evenly over the top of the ...