In this video, you’ll see how to make truffled potato and mushroom gratin. The starring ingredient is a semi-soft Italian cheese studded with truffles. It’s called sottocenere, and you can find it in most quality cheese shops. The cheese smells fantastic, and it really makes this gratin special, providing a perfect punch of truffle flavor and aroma. Layer your potatoes, mushrooms, and grated cheese into a casserole dish, and pour over a little cream and chicken stock. That's it! Then it’s ready to bake to a beautiful bubbly finish in the oven. Watch the video, then get the recipe for Chef John's Truffled Potato Gratin. It’s an amazing side dish for meats and roasted poultry.