“Kit Kat is a chocolate-covered wafer bar confection created by Rowntree’s of York, United Kingdom, and is now produced globally by Nestlé, which acquired Rowntree in 1988…The standard bars consist of two or four pieces…Each finger can be snapped from the bar separately.
The original four-finger version of the bar was developed after a worker at Rowntree’s York factory put a suggestion in the recommendation box for ‘a chocolate bar that a man could take to work in his pack up’. It was launched in September 1935 in the UK as Rowntree’s Chocolate Crisp, and the later two-finger version was launched in 1936. It was renamed Kit Kat Chocolate Crisp in 1937, and just Kit Kat after World War II. Since 1957, the slogan for the Kit Kat in the UK and elsewhere has been “Have a break… have a Kit Kat”.
“Use of the name Kit Kat or Kit Cat for a type of food goes back to the 18th century, when mutton pies known as a Kit Kat were served at meetings of the political Kit-Cat Club in London owned by pastry chef Christopher Catling.”
From the website of the National Portrait Gallery (London):
“The Kit-cat Club portraits: paintings by Sir Godfrey Kneller, circa 1697-1721
43 Portraits in set
These portraits are of a group of influential men pledged to uphold the ‘Glorious Revolution’ of 1688 and the Protestant succession. Founded by Somers, the Lord Chancellor and the publisher Tonson, the club began meeting in Christopher Cat’s tavern near Temple Bar, and took its name from his mutton pies known as Kit-cats. Members included Whig MPs and landowners as well as writers. The artist, Kneller, adopted a standard ‘kit-cat’ format of 36 x 28 inches instead of the standard 30 x 25 inches for the portraits. In the 1730s they hung in a special room which Tonson junior had built at his house at Barn Elms.”