In 1950, Diat told The New Yorker magazine: In the summer of 1917, when I had been at the Ritz seven years, I reflected upon the potato and leek soup of my childhood which my mother and grandmother used to make.
Diat recordou os pasos da súa invención para o diario New Yorker en 1950: “No verán de 1917, cando levaba xa sete anos no Ritz, reflexionei sobre a sopa de porro e pataca da miña infancia, que miña nai e miña avoa acostumaban facer.