Aero is a chocolate product originally introduced to the North of England as the "new chocolate" by Rowntree's in 1935. By the end of the year, it had proved so popular with consumers that sales were extended throughout the UK. By 1936, the popularity of the chocolate, due no doubt in part to its unique bubbly texture, had extended to New York City, and has since spread to many other countries including Canada, Australia, South Africa and Japan. Aero has been manufactured by Nestlé since 1988.
Known for its unique "bubbly" texture that collapses as the bar melts, it is available in many different forms including Aero Bars and Aero Biscuits, and originally had a mint flavour.