Nestlé and Cadbury are both racing to develop new products that would represent real innovation for the two confectionery giants.

Cadbury is currently developing a new wafer-thin chocolate that would throw the chocolate maker into completely new territory.

The chocolates, described by one buyer as similar in shape and size to Pringles crisps, are contained in trays but a brand name and pack size have not yet been confirmed. Cadbury declined to comment.

The buyer believed the new chocs could be marketed for sharing occasions and said Cadbury was hoping to bring them to market by the end of the year.

Another buyer said he had tried a mint chocolate variant. But he thought it would not be marketed as an after dinner mint, because it was likely to be available in other flavours. He described it as a unique snacking product.

Meanwhile, Nestlé has baffled buyers by revealing it is working on a top secret new product launch for early next year. In a cryptic message, Nestlé Rowntree’s head of communications, Mike O’Reilly, described the new proposition, known as Project Zephyr, as a “revolutionary new product that will fulfil consumers’ desire for an indulgent snack that isn’t focused on chocolate”.

The new product will be marketed under a new brand name, which is being developed with a marketing agency.

A spokeswoman for Nestlé said the new branded product, which should be launched in February or March, would be backed by a marketing budget of £4m. However, she added that it was still unclear about the pack size and where the product would be positioned in-store.

One buyer commented: “Considering the fuss they seem to be making about this, it had better be worth the wait.”