Ghee is a type of clarified butter that’s frequently used in Indian cuisine. It’s pure butterfat that’s lightly toasted, lending a mild buttery flavor to your mashed potatoes. Ghee is also great for sautéing and high-heat cooking, since its smoke point is much higher than that of regular butter. Add richness to the dish by throwing in a bit of sour cream, or swapping out the milk for buttermilk.