You could experience some spasm of laughter and giggles whereas being chatty. Controlled tests do affirm that some mushrooms can decrease certain symptoms and that they could have an impact on the therapy and/or prevention of some diseases. 1. Finely chop mushrooms by hand, or alternatively, pulse in a food processor until finely chopped. The earliest mention of SLICED BLACK TRUFFLES AND WHITE OLIVE OIL TRUFFLE SET as meals dates back to the 20th century B.C. Peel the mushroom caps and dice them finely (I pulse them in a meals processor a number of times). The primary mushroom market was introduced in Paris restaurants within the mid-1600s, but it surely was not till later that precise mushroom cultivation started. Starting properly from the early twentieth century, FRESH WHITE ALBA TRUFFLES Dutch growers developed extremely effective methods of cultivation and the shrooms market took off each in Europe and within the United States. ROS.