
The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box. It consists of a beef patty topped with bacon, tomato, mayonnaise, ketchup, and Swiss-style cheese on toasted sourdough bread. The Swiss-style cheese is described as melty and creamy, adding a distinctive, signature element to the burger. The Sourdough Jack can also be made vegan by substituting the meat and cheese with vegan alternatives.
| Characteristics | Values |
|---|---|
| Type of cheese | Swiss-style |
| Texture | Creamy, melty |
| Type of burger | Cheeseburger |
| Type of meat | Beef |
| Type of bread | Toasted sourdough |
| Other ingredients | Bacon, tomato, mayonnaise, ketchup |
| Vegan option | Yes |
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What You'll Learn
- The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box
- The Sourdough Jack consists of a beef patty, hickory-smoked bacon, Swiss-style cheese, sliced tomato, mayonnaise, and ketchup on toasted sourdough bread
- The Sourdough Jack has been compared to a patty melt
- The Swiss-style cheese is described as melty, adding a creamy texture to the burger
- The Sourdough Jack can also be made vegan by substituting the meat and cheese with vegan alternatives

The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box
The Sourdough Jack is a unique offering from Jack in the Box, with the Swiss-style cheese and hickory-smoked bacon adding a distinctive flavour to the burger. The beef patty is also a key component, providing a rich and meaty taste. To create the perfect patty, it is recommended to use ground chuck with an 80:20 lean-to-fat ratio, ensuring the patty is juicy and not too dry.
The Sourdough Jack can also be made vegan by substituting the meat and cheese with vegan alternatives, such as Impossible or Beyond meat, and vegan bacon and cheese. This option allows those following a plant-based diet to enjoy the unique flavours and textures of the burger.
The Sourdough Jack has become a popular item on the Jack in the Box menu, with its combination of flavours and textures appealing to a wide range of customers. The burger offers a unique twist on the traditional hamburger, with its use of Swiss-style cheese and toasted sourdough bread.
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The Sourdough Jack consists of a beef patty, hickory-smoked bacon, Swiss-style cheese, sliced tomato, mayonnaise, and ketchup on toasted sourdough bread
The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box. It consists of a beef patty, hickory-smoked bacon, Swiss-style cheese, sliced tomato, mayonnaise, and ketchup on toasted sourdough bread.
The beef patty is the star of the burger, providing a rich and meaty taste. To make the perfect patty, it is recommended to use ground chuck with an 80:20 lean-to-fat ratio. This ensures the patty is juicy and not too dry. To bind the patty together, you can use crushed crackers or panko breadcrumbs. An egg also helps to bind the ingredients and keep the patty moist without drying it out.
The Swiss-style cheese is described as "melty", adding a creamy blanket to the burger. It is a distinctive, signature element of the Sourdough Jack, setting it apart from other burgers. The cheese is likely a processed variety, contributing fat and some protein to the overall nutritional content of the burger.
The Sourdough Jack can also be made vegan by substituting the meat and cheese with vegan alternatives, such as Impossible or Beyond meat, and vegan bacon and cheese. This option allows those following a plant-based diet to enjoy the unique flavours and textures of the Sourdough Jack.
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The Sourdough Jack has been compared to a patty melt
The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box. It consists of a beef patty topped with bacon, tomato, mayonnaise, ketchup, and Swiss-style cheese on toasted sourdough bread. The Swiss-style cheese is described as "melty", adding a creamy texture to the burger. The Sourdough Jack has been compared to a patty melt. A Jack in the Box spokesperson once called it "an adult spin on the more traditional hamburger". The burger was originally released as the "Grilled Sourdough Burger" in 1989, with the name changed to "Sourdough Jack" in 1997.
The Swiss-style cheese is a distinctive, signature element of the Sourdough Jack, setting it apart from other burgers. The cheese is likely a processed variety, contributing fat and some protein to the overall nutritional content of the burger. The Sourdough Jack can also be made vegan by substituting the meat and cheese with vegan alternatives, such as Impossible or Beyond meat, and vegan bacon and cheese. This option allows those following a plant-based diet to enjoy the unique flavours and textures of the Sourdough Jack.
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The Swiss-style cheese is described as melty, adding a creamy texture to the burger
The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box. It consists of a beef patty topped with bacon, tomato, mayonnaise, ketchup, and Swiss-style cheese on toasted sourdough bread. The Swiss-style cheese is described as "melty", adding a creamy texture to the burger.
The Swiss-style cheese is a distinctive, signature element of the Sourdough Jack, setting it apart from other burgers. It is likely a processed variety, contributing fat and some protein to the overall nutritional content of the burger. The cheese is said to add a "creamy blanket" to the burger, complementing the beef patty and other ingredients to create a unique and tasty burger.
The Sourdough Jack has been described as an "adult spin on the more traditional hamburger". The burger was originally released as the "Grilled Sourdough Burger" in 1989, with the name changed to "Sourdough Jack" in 1997. It has become a popular item on the Jack in the Box menu, with its combination of melted Swiss-style cheese, savoury bacon, and juicy beef patty creating a flavourful and satisfying burger experience.
The Swiss-style cheese used in the Sourdough Jack is an essential component of the burger's success. Its creamy, melty texture enhances the overall taste and mouthfeel of the burger, making it a favourite among customers. The cheese's ability to melt and blend with the other ingredients contributes to the burger's signature flavour and texture profile, making it a standout choice for those seeking a delicious and indulgent fast-food option.
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The Sourdough Jack can also be made vegan by substituting the meat and cheese with vegan alternatives
The Sourdough Jack is a cheeseburger from the menu of the fast-food chain Jack in the Box. It consists of a beef patty topped with bacon, tomato, mayonnaise, ketchup, and Swiss-style cheese on toasted sourdough bread. The Swiss-style cheese is described as "melty" and "creamy", adding a distinctive, signature element to the burger.
The Sourdough Jack is a unique burger, with its combination of savoury and smoky flavours from the bacon, the creamy texture of the Swiss-style cheese, and the rich and meaty taste of the beef patty. The beef patty is the star of the burger, and to make the perfect patty, it is recommended to use ground chuck with an 80:20 lean-to-fat ratio. This ensures the patty is juicy and not too dry.
By substituting the meat and cheese with vegan alternatives, vegans can also enjoy the Sourdough Jack's signature flavours and textures. The vegan alternatives provide a similar savoury and smoky taste, as well as a creamy and juicy texture, replicating the unique experience of the original Sourdough Jack.
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Frequently asked questions
Swiss-style cheese.
A cheeseburger from the menu of the fast-food chain Jack in the Box.
A beef patty, bacon, tomato, mayonnaise, ketchup, and Swiss-style cheese on toasted sourdough bread.
Yes, the Sourdough Jack can be made vegan by substituting the meat and cheese with vegan alternatives, such as Impossible or Beyond meat, and vegan bacon and cheese.
Toasted sourdough bread.

























