The Watermelon Slice is the newest beverage at the U.S. Open, and it costs $39

The Honey Deuce still is the toast of U.S. Open adult beverages, an economic colossus that has secured a place on the Mount Rushmore of sports-event drinks alongside the Kentucky Derby’s Mint Julep, Wimbledon’s Pimm’s Cup and the Masters’ Azalea.

But every iconic concoction must start somewhere, and this year’s Open has welcomed a brand new, brand-related beverage, one so expensive it makes the $23 honey deuce seem like a relative bargain.

It is called the Watermelon Slice, costs a cool $39 and unlike the ubiquitous Honey Deuce is available at the Open only at the IHG Racquet Bar, on a relatively quiet side of Arthur Ashe Stadium.

The drink is made with champagne, elderflower liqueur, watermelon juice and lime, with a watermelon wedge garnish, served – and this part is crucial – in a