Proustian madeleine (u003cemu003emadeleineu003c/emu003e de u003cemu003eProustu003c/emu003e in French) is anything that brings a person back to his childhood memories, like the smell of madeleines did with Marcel Proust. This expression is inspired by a passage from the book u0022In Search of Lost Timeu0022 written by Marcel u003cbr/u003eu003cstrongu003eProustu003c/strongu003e.