Cooking is the process of preparing food, often with the use of heat. Cooking techniques and ingredients vary widely across the world, reflecting unique environmental, economic, and cultural traditions. Cooks themselves also vary widely in skill and training. Cooking can also occur through chemical reactions without the presence of heat, most notably as in Ceviche, a traditional Spanish dish where fish is cooked with the acids in lemon or lime juice. Sushi also utilizes a similar chemical reaction between fish and the acidic content of rice glazed with vinegar.

Preparing food with heat or fire is an activity unique to humans, and some scientists believe the advent of cooking played an important role in human evolution. Most anthropologists believe that cooking fires first developed around 250,000 years ago. The development of agriculture, commerce and transportation between civilizations in different regions offered cooks many new ingredients. New inventions and technologies, such as pottery for holding and boiling water, expanded cooking techniques. Some modern cooks apply advanced scientific techniques to food preparation.

Gordon James Ramsay, OBE (born 8 November 1966) is a British chef, television personality and restaurateur. He has been awarded 13 Michelin stars in total and currently holds 12.

Ramsay is known for presenting TV programmes about competitive cookery and food, such as the British series Hell's Kitchen, The F Word, Ramsay's Best Restaurant, and Ramsay's Kitchen Nightmares, along with the American versions of Hell's Kitchen, Kitchen Nightmares, and MasterChef.

Gordon Ramsay was born in Johnstone, Renfrewshire, Scotland, and raised in Stratford-upon-Avon, Warwickshire, England from the age of 5. Ramsay is the second of four children; he has an older sister, Diane, a younger brother, Ronnie, and a younger sister, Yvonne. Ramsay's father Gordon (died 1997) was, at various times, a swimming pool manager, a welder, and a shopkeeper; his mother, Helen Cosgrove, and Yvonne have been nurses. Ramsay has described his early life as "hopelessly itinerant", as his family moved constantly due to the aspirations and failures of his father, who was violent. In 1976, they finally settled in Stratford-upon-Avon where he grew up in the Bishopton area of the town. In past public interviews, Ramsay has declined to describe his father as an alcoholic; however, his autobiography, Humble Pie, describes his early life as being marked by abuse and neglect from this "hard-drinking womaniser". At the age of 16, Ramsay moved out of the family house into a flat in Banbury.

Adam Whitney Savage (born July 15, 1967) is an American industrial design and special effects designer/fabricator, actor, educator, and co-host of the Discovery Channel television series MythBusters. His model work has appeared in major films, including Star Wars: Episode II - Attack of the Clones and The Matrix Reloaded. He is a prominent member of the skeptic community. He lives in San Francisco with his twin sons and wife, Julia.

Born in New York City, Savage was raised in Sleepy Hollow in Westchester County New York. He graduated from Sleepy Hollow High School in 1985. His father, Whitney Lee Savage (1928-1998), was a painter, filmmaker and animator known for his work on Sesame Street, and has a permanent exhibit in the Avampato Discovery Museum. His mother is a psychotherapist. His sister Kate Savage is also an artist. As a teenager in Sleepy Hollow, he routinely visited the local bike shop to have flat tires fixed. The shop showed him how to do the repairs himself. From this experience, Savage said, "I realized you could take a bike apart and put it back together and it wasn't that hard...I've been building and putting bicycles together since then."

Traci Des Jardins is an American chef and restaurateur who co-owns Jardinière, a French influenced California fine-dining restaurant in the Hayes Valley neighborhood of San Francisco, California; chef/partner of Public House, a sports pub serving local, sustainable classic pub food near AT&T Park; chef/owner of Mijita, a taquería located in the Ferry Building and at AT&T Park; and chef/partner of Manzanita in the Ritz-Carlton, Lake Tahoe.

Des Jardins was raised on a farm in Firebaugh, California, near Fresno. Her father is of French Acadian descent, and her mother’s family is from the Mexican state of Sonora. Her maternal grandparents, Angela and Miguel Salazar, lived in a small house nearby, and Des Jardins has many strong childhood memories of her grandmother’s preparing flour tortillas. The Des Jardins' dinner table featured produce from the garden and game from the land in dishes which reflected her family's Mexican and Louisianan-French Acadian heritage.

Des Jardins apprenticed at several three-star French restaurants, including La Maison Troisgros, and was executive chef at Joachim Splichal’s Patina in Los Angeles. Later, she worked at notable San Francisco restaurants Aqua, Elka, and Rubicon before opening Jardinière in 1998.