I'd say you might be ruining good butter with unhealthy truffle oil. However, it isn't simply opened truffle oil that ultimately goes dangerous and loses its flavor. Among the other merchandise by ‘La Rustichella’: asparagus cream with white truffle, for fresh courses, appetizers, risotto or pasta salad, roast beef and other comparable meats; ‘mandorlive’, a younger spread prepared with olives, almonds, and white truffle, which goes well with summer programs and accompanies the delicate meats of veal, hen, turkey, or each boiled and baked fish; basil with white truffle, a spread prepared with basil and white truffle, for flavouring and garnishing ‘caprese’ or chilly pasta, white ‘lasagna’, salads; sun-dried tomatoes and black truffle, a cream prepared with sundried tomatoes and summer season black truffle, to reinforce some programs of meat with tomato sauce, making them particular.