Winehouse, who spent time in a London detox centre last month, did her trick for friends at the nightclub Bungalow 8 on Wednesday (March 5). The friends present included Kelly Osbourne, Mark Ronson and Kimberly Stewart.
A source said, "Somebody had brought over 20 shots to Amy’s table and she decided to show off her new party trick."
The star reportedly heated the alcohol with a lighter, then snorted it through a straw. The Rehab singer stunned the crowd with her trick.
According to doctors, snorting vodka can be fatal since alcohol is absorbed directly into the bloodstream.