Singapore’s elite foodies are queuing for hours to order a secret menu item that consists of industrial-grade MSG served in a thimble.

The "Hidden Treasure" at Maxwell Food Centre is only available to patrons who wink three times at the vendor while violently grinding against the tray return station.

Local food bloggers claim the experience is "life-changing" because it tastes like pure heart failure and social superiority.

"Eh, you don't know ah? This one the special 'Secret Uncle' menu, must ask him nicely then he give you the extra salty white powder one," said regular patron, Tan Ah Kow.

"If your blood pressure don't hit 200 until you see stars, you never eat properly yet, bodoh!"

Health officials have praised the dish for its efficiency in reducing the ageing population without the need for additional inheritance taxes.