News $1,000-a-pound delicacy: More U.S. farms grow pricey truffles with help from dogs March 17, 2019Marco della Cava, USA TODAYComments Off on $1,000-a-pound delicacy: More U.S. farms grow pricey truffles with help from dogs While truffles have been hunted for centuries in Europe, a few dozen farms in the United States are now cultivating the pricey delicacy.