Most people who have been to California understand the lure of the burger chain In-N-Out.

They use fresh ingredients to produce what many call a great-tasting burger. Popular website Buzzfeed goes so far to actually call it “heaven on earth.”

But for one day only Thursday, Torontonians won’t have to travel to California, Arizona or Texas to inhale a “double-double animal style.”

An In-N-Out pop-up shop is reportedly open from 11 a.m. to 3 p.m. at Italian restaurant Ganzi Osteria on Jarvis, north of Wellsley.

Someone took out an ad in Metro papers advertising the event and Ganzi Osteria confirmed it on Facebook and Twitter.

Double-double animal style is a secret menu option that may be the worst kept secret. It is two patties plus pickles, grilled onions and mustard fried onto each patty.