Truffle oil is frequently used to train truffle-hunting dogs and pigs. Truffles are also used for producing truffle salt and truffle honey. Dinner included truffle and ricotta ravioli and filet mignon and scallops. Milk chocolate with a soft cocoa truffle filling. The beef was served with lemon, olive oil, and white truffle or Parmesan cheese. Subsequent varieties of Just Mayo include Chipotle, Sriracha, Garlic, Truffle and "Awesomesauce" flavors. They included a black truffle and Chablis mustard served in sandstone jars. The pecan truffle ("Tuber lyonii") syn. It is found in boar's saliva, celery cytoplasm, and truffle fungus. Some restaurants stamp out circular discs of truffle flesh and use the skins for sauces. A less common truffle is "garlic truffle" ("Tuber macrosporum"). Modern Italians often use a "strufion", a ball of rags scented with truffle oil. It is one of the components of the aroma of "Tuber melanosporum", the black truffle. Some of the truffle species are highly prized as food.