The last time we wrote about Chef Mary Beth Lawton Johnson, ccc, cepc, she was working as a private chef on yachts. Since then she has moved to higher ground and is now working as a private chef for a high-profile family in undisclosed locations. Her client list is a well-kept secret, but not among the rich and famous who retain her culinary expertise. Her home is still in Florida, but her current client base is in the...