When it comes to iconic female pioneers, fashion has 98-year-old Iris Apfel, government has 87-year-old Ruth Bader Ginsberg, and cooking has 97-year-old Diana Kennedy.

This extremely talented, smack-talking British chef is the subject of Diana Kennedy: Nothing Fancy, the documentary from first-time filmmaker Elizabeth Carroll.

What makes Diana stand out from the rest is her life’s dedication to researching and cooking authentic Mexican food, all while sporting an attitude that makes Julia Child look reserved. Author of nine books, most famously The Cuisines of Mexico, it’s fascinating to watch Diana as she preaches authenticity and sustainability with such passion, even if that means insulting something or someone in the process. Widowed with no children, Diana is the definition of untraditional. While her lifestyle may be out of reach, she lives alone in the mountains 100 miles west of Mexico City, her mission is simple: greatness–in life and in food–takes time. That’s her attitude as she peels and roasts coffee beans, a process that takes about 20-30 minutes to prepare one cup of coffee.

With a swift 81-minute runtime, Diana Kennedy: Nothing Fancy is a wonderfully inspiring look at the art of Mexican cooking and the British woman who immortalized its importance. “You’re a legend,” says a photographer to Diana at a celebratory gala. “I know, goddammit,” replies Diana with a cheeky grin. What is Diana up to now? She’s still traveling Mexico, still learning, and most importantly, still sharing her wisdom. And yes, you’ve been making your guacamole all wrong.

‘Diana Kennedy: Nothing Fancy’ opens nationwide on Virtual Cinema on Friday, May 22nd. Available on VOD on Friday, June 19th.