The Golden Opulence Sundae is a sundae that is served by special order at the New York City restaurant Serendipity 3. In 2007 it was listed in Guinness World Records as the most expensive sundae in the world at a price of US$1,000. The restaurant has stated that they sell approximately one per month. It was created to celebrate the eatery's golden 50th anniversary in 2005. Owner Stephen Bruce states that 48 hours advance notice is needed when requesting the Golden Opulence Sundae, since ingredients must be flown in from different parts of the world.http://www.serendipity3.com