Kendal both poles of the Earth, its popularity is mainly due to the very astute decision of the original manufacturer's great-nephew to market it as an energy food, and to supply Ernest Shackleton's 1914–17 Trans-Antarctic Expedition. By the time the business was sold to competitor Romney's in 1987 there were several rival mint cake producers, many of which are still in business. Snuff production in Kendal dates from 1792, when Kendalian Thomas Harrison returned from Glasgow, Scotland, where he had learned the art of snuff manufacture. He also brought with him 50 tons of second-hand equipment, all carried on horse back.
Blue cake the time during which the dough is allowed to rest before baking (up to two days) and the baking temperature and heat all vary. Blue cake is eaten as a snack with cheese and meat or at breakfast with coffee, butter and jam. It has a light and buttery taste. The cake is mostly appreciated by Frutig Valley residents and is virtually unknown among visitors and outside the valley. Blue cake Blue cake () is a flaky pastry that is a specialty of the Frutig valley (the lower part of the Kander valley consisting of the municipalities of Aeschi, Reichenbach,