Mark Tarbell by Joanie Simon    When legendary French chef Jacques Pépin – known nearly as much for his kindness as his cuisine – asks you to do something, you say yes. That’s what Valley chef Mark Tarbell, a legend in his own right, has learned over the years.   “My first cookbook, at age 15, was La Technique by Jacques Pépin,” he says. “Many years later in the ’80s, when I was working at the Boulders Resort, we did an event with Jacques which marked the beginning of a long...