A newspaper article from the Lancashire Evening Post on may 3rd 1954.
'Ever since it became known that Hillary carried a slab of Kendal Mint Cake to the summit of Everest last May, no doubt consuming portions of it on the way, the demand for these attractive chunks of Westmorland confectionery has been quite phenomenal. People from all parts of Britain as well as from abroad, who had never even heard of Kendal Mint Cake before, have suddenly discovered its qualities and the manufacturers - it is all made by hand - could sit up all night making up orders if they felt like it.
The new craze is quite remarkable for people have been making the sweet in Kendal for nearly 100 years, and almost every British expedition to the Arctic, the Antarctic and the great mountains of the world this century has taken supplies of it with them. Climbers and explorers have known for years that Kendal Mint Cake supplies energy very quickly, does not create thirst, and can be assimilated without effort, and Westmorland folk and Lake District visitors know how pleasant it is to crunch. Now people in London, Liverpool, Leicester and Land's End are buying it too.
Old recipes
Kendal Mint Cake is not made in big up-to-date factories. Most of the manufacturers work in small back rooms away from the main streets using old recipes and methods which have hardly changed since last century. It is not easy to trace the actual beginning of Kendal Mint Cake, although it is claimed that Joseph Wiper 'originated' it in 1869. But about the same time as Mr.Wiper began to make Kendal Mint Cake an old man named William Jenkinson was also making it in Sandes-Avenue and even before his day, it is said that a certain Betsy Court made it at the back of a shop in the main street where a large store stands today.
Joseph Wiper was a remarkable man. He served his time as an ironmonger, married into the sweet trade, and then started to learn all he could about it. He made his Kendal Mint Cake at Ferney Green and at one time had 16 shops in the North-East of England. In April 1912, he went out to British Columbia with his family, and started confectionery businesses out there. He died in 1930 at the age of 84 but years before then, he had sold out his Kendal business with the original Kendal Mint Cake recipe to Atkinson's of Windermere who can fairy claim to sell the 'original'.
Run out of space
A descendant of Mr. Wiper, Mr. Robert Wiper (the originator was his great uncle), still makes Kendal Mint Cake in Kendal from an old recipe, and it was this Mr. Robert Wiper who began the tradition of supplying expeditions with sweetmeat. The first expedition he was commissioned to supply was that of Sir Ernest Shackleton to the Antarctic in 1914 and since then, he has supplied so many expeditions, including six to Everest , that he has run out of recording space on his wrappers, where only 20 are mentioned. Mr. Wiper makes his Kendal Mint Cake by hand in a building which was once a photographer's studio, tucked away on the Low Fellside area of Kendal. Round the walls are photographs taken on Polar and Himalayan expeditions , and from constant association with the men of these expeditions, Mr. Wiper has become something of an authority on the subject of exploration in the remote places of the Earth. When Dr Howard Somervell, Freeman of Kendal and Everest climber, was preparing for his big ridge walk in Skye many years ago, he ordered quantities of Kendal Mint Cake from Mr. Wiper, but it had to be white, not brown. Mr. Wiper tells me that there is more food value in white Mint Cake and that 12 cakes of brown are equivalent in food value to only 10 1/2 of white.
Gave up coupons
Mr. Wiper is one of six manufacturers making Kendal Mint Cake, four in Kendal and two in Windermere, and so far as I know, nobody outside Westmorland makes exactly the same product. It was the latest entrant into the field, George Romney Ltd., of Kendal, who provided the successful Everest expedition with their supplies and the impressive phrase 'As carried to the top of Everest', is now prominently displayed on the firm's vans. The head of the firm is Mr. Sam T. Clarke, a local magistrate, who started making the cake in 1936. Mr. Clarke is proud of a letter he received from Major Wylie, a member of the expedition, which stated that Mint Cake supplied by him was "easily the most important item" in the high-altitude rations. His wife and daughter attended by invitation, the opening Royal Geographical Society lecture by Hillary, Hunt, and others in the London Festival Hall. Another treasured memento is a special permit from the Ministry of Food, allowing him to manufacture Mint Cake for Everest Expedition purposes from materials 'off the ration'. This permit was supplied after it had been found that members of his staff had given up their coupons so that the expedition Mint Cake could be made.
Crisp or creamy
Kendal Mint Cake from one manufacturer can taste quite different from that from another make. Some make it crisp and sharp, others make it creamy, while some use more mint than others. The basic ingredients are always sugar, glucose and mint, but most manufacturers add one or two other ingredients, the nature of which they keep to themselves. It is not an easy Sweetmeat to make, for the boiling has to be caught at exactly the right moment before the introduction of the mint, a job which could hardly be done by the machine.
Thousands of slabs of it leave Kendal every week, with the name of the town and county boldly displayed on the wrapper; so that the ascent of Mount Everest has not only done all the manufacturers of Kendal Mint Cake a great deal of good, but has also benefited , indirectly, the "old grey town" itself.'