Creative Loafing Knife's Edge columnist and former "Top Chef" contestant RICHARD BLAIS is well-known for his inventive dishes and extreme cooking techniques. Many Atlantans have tasted his unique cooking style at his latest offering, Flip Burger Boutique, a Westside restaurant that has almost single-handedly introduced the designer burger fad to Atlanta. Always a leader of the pack, Blais takes the stage for an interactive cooking demonstration. With the help of his cooking crew, the aptly named "Trailblaisers," Blais will prepare a three-course meal and discuss molecular gastronomy, the future of dining, and show off the many gadgets and elements – yes, there will be liquid nitrogen – that have helped shaped him into the chef he is today. $25. 3 p.m. Variety Playhouse, 1099 Euclid Ave. 404-524-7354. www.variety-playhouse.com.