SHAKE Shack has brought a unique twist to a menu staple for customers in a first-ever move.
Its part of the restaurant chain’s efforts to accommodate autumn with a major shakeup to food and drink items.
Shake Shack is leaning into French onion flavoring this fall (stock image)[/caption]
French onion-flavored burgers are available starting September 9[/caption]
Starting on Tuesday, customers can take advantage of the French Onion menu at Shake Shack, per a press release.
Shake Shack was inspired by French Onion Soup specifically, a beloved fall dish, and decided to create offerings that represents its “decadent, elevated flavors.”
Of particular note on the updated menu is the French Onion Soup Burger, something that was built in “layers,” according to John Karangis, executive chef and vice president of Culinary Innovation at Shake Shack.
“With our French Onion menu, we set out to capture the depth of the classic soup,” Karangis said in a statement.
“We built flavor in layers, from slow-cooked caramelized onions and roasted garlic to melted Gruyère and crispy sweet onions — bringing this rich, indulgent soup to life in our favorite way: a delicious burger.”
The French Onion Soup Burger comes with a 100% beef Angus patty and the Gruyère cheese, along with caramelized onions, crispy sweet onions, and a roasted garlic parmesan aioli.
Of course, this is all sandwiched between a toasted potato bun.
BURGER BONUS
There are two other burger variations as well, including the French Onion ‘Shroom Burger and French Onion Shack Stack.
With the French Onion ‘Shroom Burger, there’s crisp-fried portobello mushrooms, Muenster and cheddar cheese, caramelized onions, and the roasted parmesan garlic aioli between the potato buns.
The French Onion Shack Stack has the 100% Angus patty again with the ‘Shroom burger on top, Gruyère cheese, caramelized onions, and the roasted garlic parmesan aioli with the potato bun.
Along with the three burger options on the French Onion menu at Shake Shack, there are also two sides and a new sweet treat.
First is the Parmesan Garlic Fries, which are the chain’s classic crinkle-cut fries dusted with parmesan cheese and served with roasted garlic parmesan aioli as a dipping sauce on the side.
There’s also Onion Rings, which are beer-battered and made from sweet Spanish onions.
Consumers can elect a sauce of their choice with those.
Shake Shack French Onion Menu
Shake Shack’s French Onion Menu will be available everywhere starting September 12, 2025.
- French Onion Soup Burger: $10.99
- French Onion ‘Shroom Burger: $11.29
- French Onion Shack: $14.29
- Parmesan Garlic Fries: $5.99
- Onion Rings: $5.49
- Coffee Shake: $5.09
Pricing will vary by location and state.
TREAT TIME
Lastly, there’s the Coffee Shake, made with dark roast and hand-spun with Shake Shack’s house-made vanilla frozen custard.
It’s important to note that only those who have the Shack app can start ordering from the French Onion menu on September 9.
An in-store rollout of the entire menu at all of Shake Shack’s over 370 locations nationwide will be on September 12.
The Coffee Shake can be obtained on September 9 in person still.
Prices for the French Onion menu offerings range between $5.49 on the low end and $14.29 on the high end, but will vary based on restaurant location and state.
Nick Wuest, senior manager of culinary innovation at Shake Shack, told USA Today recently that it took about two years for the brand to really nail down the flavors they wanted for the French Onion menu.
“We looked at all different ways of doing French onion,” Wuest told the publication.
“We made more pots of French onion soup than we knew what to do with.”
Shake Shack also recently opened some first-ever locations in three key cities across the country.
It even brought back its version of a Dubai Chocolate shake this summer after the treat went viral online.
