Technically, These are the edible spore-making A part of the fungi relatives Tuberaceae. Tuberaceae aren't tubers but are shaped like tubers and can be as smaller being an acorn or as significant as an orange. In actual fact, the use of pigs for truffle looking has become banned in Italy https://mushroomchocolates.us/product/mushpro-monotub-grow-kit10-packs/