'Shark Tank' contestant dishes on Barbara Corcoran By: CNBC.com News June 03, 2014 at 14:13 PM EDT CNBC catches up with "Shark Tank" contestant Dorene Humanson, founder of The Chef in Black. She dishes on what it's like to work with Barbara Corcoran. Read More >> Related Stocks: Kroger Co Wal-Mart Stores, Inc.