Delmonico Potatoes - the most AMAZING potatoes EVER!!! We have made these 3 times in the last month. They are simply the BEST!!! They are also super easy to make. You can make them ahead of time and refrigerate or freeze for later. Frozen hash brown potatoes, milk, heavy cream, dry mustard, salt, cheddar cheese. A new family favorite!
Preheat oven to 350º F. Lightly spray a 9x13-inch pan with cooking spray. Spread potatoes in prepared pan. Set aside.
In a large saucepan, combine milk, heavy cream, dry mustard, salt, garlic powder and black pepper. Add cheese and cook over medium-low heat until cheese melts.