Arrange the truffle slices in a single layer on the trays, ensuring to depart space between every slice for air circulation. 7. For serving, place each fillet of steak on a slice of toasted brioche then prime with foie gras. 5. Slice your foie gras in thick slices about roughly 1.5 - 2cm slices. Don’t use any oil or fats, as a result of the foie gras is 90% fat. For those concerned with fats, coconut oil has high saturated fats content, so watch out for this. Pizza lovers can elevate their favorite dish with truffle oil drizzled pizza, bringing a gourmet touch to a classic favorite.