CHICAGO – The Big Mac, McDouble burger and the classic Cheeseburger, Double Cheeseburger and Hamburger received minor improvements that add up to a boost in flavor and eating experience, according to the Culinary Innovation team at McDonald’s Corp.

Upgrades to the classic burger items include: 

•    Softer, pillowy buns that are freshly toasted to a golden brown.

•    Perfectly melted cheese.

•    Juicier, caramelized flavor from adding white onions to the patties while they’re still on the grill.

•    Even more Big Mac sauce.

As part of the rollout, McDonald’s is re-introducing the “resident mischief-maker,” the Hamburglar in the company’s newest TV commercial.

The burger changes are making their US debut this year in several cities on the West Coast after being introduced in international markets like Australia, Canada and Belgium to positive reviews, according to the company. The upgraded burgers will be in McDonald’s restaurants nationwide by 2024.

“I’ll always remember my first burger from McDonald’s,” said Chef Chad Schafer, senior director of Culinary Innovation, McDonald’s USA. “And now my culinary team and I have the best job in the world: thinking about ways to bring even more of that iconic McDonald’s taste to fans. We found that small changes, like tweaking our process to get hotter, meltier cheese and adjusting our grill settings for a better sear, added up to a big difference in making our burgers more flavorful than ever.”