McDonald’s highly-anticipated Chicken Big Mac is set to hit menus next week, and it’s a recipe that’s been two years in the making.

Created by Jeff Anderson, McDonald’s senior manager of menu innovation in Toronto, the new burger will feature the classic toppings found in the Big Mac — lettuce, processed cheddar cheese, pickles and Big Mac sauce — with a chicken twist. The Chicken Big Mac features two lightly-coated chicken patties made  and served on a sesame seed bun.

Anderson, who trained at the Culinary Institute of Canada and previously worked at restaurants in Halifax and Toronto told CTV News that much work went into getting the Chicken Big Mac just right.

“We knew we had to keep the identity, but how do we integrate the chicken part of it into that? It is a lot of pre-work that comes into this before we make something that goes to market,” he said.

Anderson went on to tell CTV News that the new Big Mac was inspired by the customers who for years had been playing with the original recipe — taking the chicken out of another sandwich and putting it in the Big Mac or putting the special sauce on a chicken sandwich.

Less than two weeks after its launch in the United Kingdom in 2022, the Chicken Big Mac sold out out “almost everywhere.”

Well, that escalated quickly. Your love for the limited edition Chicken Big Mac knew no bounds and it’s sold out almost everywhere. Thank you for lovin’ it even more than we thought you would, it’ll be back soon pic.twitter.com/8hEYNTF90R

— McDonald’s UK (@McDonaldsUK) February 11, 2022

Last summer,  the new burger made its way to the U.S. for a test run and it is still unknown whether a nationwide release is in the works.

The limited-edition Chicken Big Mac will be available at participating restaurants across Canada on Tuesday, March 7.