How This Farm Grows $1,700-Per-Pound White Truffles American truffle farmers have struggled for years to grow the valuable crops in America. But Burwell Farms in North Carolina has found a way to consistently harvest up to 120 lbs of white truffles per acre. It required a scientific breakthrough, years of tree cultivation and some highly trained dogs. WSJ visited Burwell Farms to see how they built their American truffle business. | Duncan Oil