A flatbread is a simple bread made with flour, water, and salt and then thoroughly rolled into flattened dough. Many flatbreads are unleavened — made without yeast or sourdough culture — although some flatbread is made with yeast, such as pita bread.

There are many other optional ingredients that flatbreads may contain, such as curry powder, diced jalapeños, chili powder, or black pepper. Olive oil or sesame oil may be added as well. Flatbreads can range from one millimeter to a few centimeters thick.

Flatbread was already known in Ancient Egypt and Sumer^[when?].

The term unleavened bread can also refer to breads which are not prepared with leavening agents. These flatbreads hold special religious significance to adherents of Judaism and Christianity. Jews consume unleavened breads such as matzo during Passover.

Unleavened bread is used in the Western Christian liturgy when celebrating the Eucharist. On the other hand, most Eastern Churches explicitly forbid the use of unleavened bread (Greek: azymes) for Eucharist as pertaining to the Old Testament and allow only for bread with yeast, as a symbol of the New. Indeed, this was one of the three points of contention that brought about the schism between Eastern and Western churches in 1054.

Mark Bittman (born c.1950) is an American food journalist and author. He is a columnist for The New York Times.

Bittman is a graduate of Stuyvesant High School Class of 1967 and of Clark University.

Bittman is a prolific author on the topic of food and cooking. Three of his books, including Cooking at Home with a Four-Star Chef, have been given the IACP/Julia Child and/or James Beard awards.

Bittman published his book Leafy Greens in 1995, How to Cook Everything in 1998, Fish - The Complete Guide to Buying and Cooking in 1999 and Simple to Spectacular in 2000.

In 2005 he published the book, The Best Recipes in the World and Bittman Takes On America's Chefs and hosted the Public Television series Bittman Takes on America's Chefs which won the James Beard Award for best cooking series.

In 2007 he published How to Cook Everything Vegetarian and created the film "What's wrong with what we eat?".

Bittman appeared with Gwyneth Paltrow and Mario Batali, in a PBS series called Spain... on the road Again in 2008.

James Trevor "Jamie" Oliver, MBE (born 27 May 1975) is an English chef, restaurateur and media personality, known for his food-focused television shows, cookbooks and more recently his campaign against the use of processed foods in national schools. He strives to improve unhealthy diets and poor cooking habits in the United Kingdom and the United States. Jamie Oliver's speciality is Italian cuisine, although he has a broad international repertoire.

Jamie Oliver was brought up in Clavering, Essex, England. His parents ran a pub, "The Cricketers", where he used to practise in the kitchen. He was educated at Newport Free Grammar School. He left school at age sixteen without qualifications and went on to attend Westminster Kingsway College, formerly Westminster College. He then earned a City & Guilds NVQ in home economics.

His first job was as a pastry chef at Antonio Carluccio's Neal's Yard restaurant, where he first gained experience with preparing Italian cuisine, and developed a relationship with his 'mentor' Gennaro Contaldo. Oliver then moved to The River Café, Fulham, as a sous chef.