[A]ll the great chocolate bars are British, and the first of them, and still my favourite, was Cadbury’s Dairy Milk, invented in 1905. Other great British bars appeared in a burst of heroic creativity in the 1920s and 1930s: the Flake in 1920, Cadbury’s Fruit and Nut in 1928, Fry’s Crunchie in 1929, the Aero in 1935, then in 1937 no fewer than three masterpieces, the Rolo, the Kit Kat and Smarties. All British inventions. According to Roald Dahl: ‘In music, the equivalent would be the golden age of Bach, Mozart and Beethoven. In painting, it was the equivalent of the Italian Renaissance and the advent of Impressionism at the end of the 19th entury; in literature, Tolstoy, Balzac and Dickens.’
P.S. Hat tip: Jenny D.
P.P.S. While we are on the subject of John Lanchester, allow me to recommend The Debt to Pleasure