The black truffle grows underground, usually at a depth of 5-15 cm. Other than the coloration, what is the distinction between black and white truffles? When the king of truffle is around White truffle season is on! Season evenly with salt. Ingredients.-4 exhausting-boiled eggs, ½ a pint of white sauce (see Sauces), fried or toasted croûtons of bread, finely-chopped parsley, salt and pepper. There are several varieties of truffle winter summer time black or white. Our world-class contemporary black Périgord truffles are favoured by essentially the most exclusive Michelin Star Chefs around the globe and are featured on menus throughout Australia, Asia, North America, Europe and the Middle East.