Profits in Jamie Oliver's business empire rose by a quarter last year, boosted by international sales of his books and his contracts endorsing Sainsbury's, Tefal and Royal Worcester, enabling the chef to pay himself more than £2m. The flagship Shoreditch branch of his "Fifteen" chain of restaurants, which trains disadvantaged young chefs, made a loss of £500,000 last year although is expected to go into profit this year. Oliver is donating all the profits from his new book "Cook With Jamie" to the Fifteen Foundation, the charity which owns the four restaurants. The Independent on Sunday