What is the fine-grained topic of the following text: A nationally recognized, award-winning recipe developer, American Culinary Federation Chef, livefire grill master, media personality, and international adventurer-extraordinaire; David has served as a brand ambassador for several high-profile organizations, including Char-Broil, All-Clad, Omaha Steaks and Whole Foods Markets. Only return the topic.
David's culinary career and accomplishments