A $175 hamburger is served with fries at The Wall Street Burger Shoppe in New York May 20, 2008. The Wall Street Burger Shoppe just raised its price from $150 to assure its designation as the most expensive burger in the city as determined by Pocket Change, an online newsletter about the most expensive things in New York.

The burger, created by chef and co-owner Kevin O’Connell, seeks to justify its price with a Kobe beef patty, lots of black truffles, seared foie gras, aged Gruyere cheese, wild mushrooms and flecks of gold leaf on a brioche bun.

The eatery sells 20 or 25 per month in the fine dining room upstairs versus hundreds of $4 burgers each day at the diner counter downstairs, Tierney said.

Pocket Change previously designated the double truffle burger at Daniel Boulud’s DB Bistro Moderne as the most expensive at $120, and the Burger Shoppe set out to top that.

Boulud’s creation — available only during black truffle season from December to March — rose to $150 this past season, so the Burger Shoppe raised its price on Monday to $175.