Jack in the Box Breakfast Supreme Sourdough Calories, Taste & More Inside
Published: 12 Aug 2025
If you’re someone who craves breakfast flavors no matter the time of day, the Supreme Sourdough from Jack in the Box might just hit the spot. This mouthwatering sandwich is part of their All-Day Breakfast lineup, designed for those who believe breakfast isn’t just for mornings.
At first glance, the Supreme Sourdough catches your eye with its signature golden grilled sourdough bread—toasty, buttery, and slightly crisp. But what really makes it “supreme” is what’s inside: a savory combination of two juicy beef patties, melty Swiss-style cheese, crispy strips of bacon, and a blend of creamy mayo and tangy ketchup, all stacked in a warm, hearty bite.
This blog post gives you all the information related to its ingredients, menu, calories, protein, and more.
Jack in the Box Breakfast Supreme Sourdough:
If there’s one thing Jack in the Box understands, it’s that cravings don’t follow a schedule—and that’s exactly where the Supreme Sourdough comes in. Part of the brand’s popular All-Day Breakfast menu, this sandwich isn’t just for mornings. It’s for anytime hunger strikes—with something bold, satisfying, and full of flavor.
At its core, the Supreme Sourdough is a powerhouse of taste layered between two slices of golden, grilled sourdough bread. It’s not your average breakfast sandwich—it’s a full-on flavor experience. Inside, you’ll find two seasoned beef patties, crispy bacon, melted Swiss-style cheese, and a smooth layer of creamy mayo and ketchup. Every bite delivers a perfect blend of juicy, crunchy, cheesy, and savory, wrapped in the unique tang of toasted sourdough.
Unlike typical breakfast items that fade by noon, the Supreme Sourdough is designed to satisfy all-day appetites—whether you’re powering through a morning commute, fueling up at lunch, or settling a late-night craving. It’s hearty enough to replace a full meal and indulgent enough to feel like a reward.
In a world of predictable fast food options, the Supreme Sourdough stands out as a bold twist on breakfast classics, making it a must-try for those who want something familiar yet elevated. Whether you call it breakfast, lunch, or dinner, this sandwich doesn’t need a time slot. It just needs your appetite.
What Makes the Supreme Sourdough Special?
The Supreme Sourdough isn’t just another burger on the menu—it’s a standout item that combines the best of breakfast comfort and bold burger satisfaction. What truly makes it special is the sourdough bread, which gives the sandwich a rustic, grilled crunch that elevates it far above your average fast-food bun. It’s warm, buttery, and toasted to golden perfection, adding a tangy depth that regular buns simply can’t match.
But it’s not just about the bread. The double beef patties add a satisfying, juicy bite, while crispy bacon strips bring in that salty, smoky crunch. Layered with melted Swiss-style cheese, it hits the sweet spot between creamy and savory. And instead of overwhelming the sandwich, the mayo and ketchup serve as the glue that ties everything together, providing smoothness and a slightly tangy kick.
Its true charm lies in its ability to deliver breakfast-style comfort at any hour, making it a go-to for those who want something richer and more filling than a standard morning sandwich. It’s not just food—it’s a flavor-packed experience you won’t forget after the first bite.
What’s Included in It – Ingredients List
Here’s a closer look at the flavorful stack that makes up the Supreme Sourdough:
Grilled Sourdough Bread
Two slices of thick, tangy sourdough bread, grilled until perfectly golden and crisp.
Two Seasoned Beef Patties
Juicy, flavorful, and satisfying—these patties provide the bulk of the sandwich’s protein punch.
Swiss-Style Cheese
Melted between the patties and the bacon, this cheese offers a creamy texture and mild flavor that balances the meatiness.
Crispy Bacon Strips
Cooked until crunchy, the bacon adds a smoky, salty twist that elevates every bite.
Mayonnaise & Ketchup
A classic combo that adds smoothness and a sweet-savory balance, without overpowering the main ingredients.
Every layer is intentionally placed to create a perfect bite—crispy, juicy, cheesy, and bold. The Supreme Sourdough may seem simple, but it’s carefully crafted to satisfy even the strongest cravings.
Price & Availability: Where Can You Get the Supreme Sourdough?
The Supreme Sourdough is widely available at most Jack in the Box locations across the U.S., and it’s part of their All-Day Breakfast menu, so you can order it anytime, day or night. Whether you’re stopping by for a late breakfast, lunch, dinner, or even a midnight snack, this sandwich is usually ready to serve.
As for pricing, it typically ranges between $6.49 – $7.99, depending on your location and whether you get it as a standalone item or in a combo meal. Combo meals (which include fries and a drink) can cost anywhere from $9.99 to $11.49. Prices may vary slightly based on region, delivery platform fees, or in-app deals through the Jack in the Box mobile app.
Is the Supreme Sourdough Safe for Everyone? – Allergen Information:
The Supreme Sourdough contains several common allergens, so it may not be suitable for everyone. Here’s a breakdown of potential allergens found in this product:
| Allergen | Present in Supreme Sourdough |
| Wheat/Gluten | ✅ Yes – in sourdough bread and burger patties |
| Milk/Dairy | ✅ Yes – in cheese and mayo |
| Eggs | ✅ Yes – in mayo |
| Soy | ✅ Yes – in sauces and possibly patties |
| Sesame | ❌ Typically not present, but check local listings |
| Tree Nuts/Peanuts | ❌ Not present |
Note: Jack in the Box kitchens handle many allergens, so cross-contact is possible, even if an ingredient itself doesn’t contain an allergen. It’s always recommended that individuals with severe food allergies consult directly with the restaurant or visit the official Jack in the Box allergen page for the most accurate and updated information.
Product Real Taste & Texture
The moment I opened the box, the smell hit first—a warm, buttery aroma with hints of smoky bacon and grilled beef. The Supreme Sourdough looked big, almost like a homemade sandwich that had been grilled to golden-brown perfection. The sourdough bread had a rustic, slightly toasted edge, with just the right amount of crispness on the outside while still soft and chewy in the center.
As I picked it up, I noticed how hearty it felt in my hands, not flimsy or flat like some fast food sandwiches. It had a real weight to it. The cheese was melted perfectly, stretching ever so slightly between the layers, and the bacon poked out from the sides, visibly crisp. You could actually see the juicy beef patties stacked together, not hidden or flat—this thing was thick.
The first bite was intense. I got the crunch from the grilled sourdough right away, followed by the juicy, savory flavor of the beef. The bacon added a salty crispiness that gave it a slightly smoky punch, and then the melted Swiss-style cheese mellowed everything out. The mayo and ketchup added just the right amount of creaminess and tang without making it soggy or too sweet.
Supreme Sourdough – Nutrition Facts (Estimated Per Sandwich)
| Nutrient | Amount |
| Calories | 740 kcal |
| Total Fat | 48g |
| Saturated Fat | 18g |
| Trans Fat | 2g |
| Cholesterol | 120mg |
| Sodium | 1,400mg |
| Total Carbohydrates | 42g |
| Dietary Fiber | 2g |
| Sugars | 6g |
| Protein | 34g |
Note: Values may vary slightly based on location, customization, or meal preparation.
Source of Calories – Where the Calories Come From
| Component | Primary Contribution |
| Beef Patties (x2) | High in protein and fat |
| Swiss-Style Cheese | Contributes fat and dairy calories |
| Crispy Bacon | Adds saturated fat and sodium |
| Grilled Sourdough Bread | Major source of carbohydrates |
| Mayonnaise & Ketchup | Source of fat, sugar, and extra calories |
Most calories come from fat and protein, with moderate carb content from the sourdough.
How to Burn Off 740 Calories – Common Activities Table
| Activity | Duration (approx.) |
| Brisk Walking | 1 hour 45 minutes |
| Jogging (5 mph) | 1 hour |
| Cycling (moderate) | 1 hour 10 minutes |
| Swimming (casual) | 1 hour 20 minutes |
| Dancing (Zumba/Aerobics) | 1 hour 15 minutes |
| House Cleaning (deep) | 2 hours |
| Jump Rope (steady pace) | 45 minutes |
Based on an average adult weighing 150–160 lbs.
Comparison with Similar Menu Items
The Supreme Sourdough holds a unique spot on Jack in the Box’s menu, but how does it stack up against other popular sandwiches and burgers? Let’s break it down:
| Item | Key Differences |
| Sourdough Jack | Only has one beef patty, no bacon, and includes tomato and lettuce. Lighter, slightly fresher taste. |
| Bacon Ultimate Cheeseburger | Similar double-patty and bacon build, but uses a regular bun and more cheese, no sourdough. Richer and heavier. |
| Ultimate Cheeseburger | Double patties and heavy cheese layers, no bacon, and uses a standard bun. Focuses more on cheese. |
| Grilled Sourdough Swiss Burger (limited locations) | Single patty, Swiss cheese, sourdough bread—simpler version of the Supreme Sourdough. |
Conclusion: Is It Worth Trying?
If you’re in the mood for a sandwich that delivers both comfort and bold flavor, the Supreme Sourdough is definitely worth a try. It’s crispy, grilled sourdough bread sets it apart from standard fast food burgers, while the double patties, melted cheese, and bacon make it a filling, crave-worthy meal.
Whether it’s morning, noon, or midnight—thanks to Jack in the Box’s All-Day Breakfast menu—you don’t have to wait for the “right time” to enjoy it.
FAQs – Supreme Sourdough On Jack’s Menu
It includes two beef patties, Swiss-style cheese, crispy bacon, sourdough bread, mayo, and ketchup.
Yes, it’s a permanent item on the Jack in the Box menu.
It contains approximately 710–800 calories, depending on regional variations.
Yes, you can get it in a combo with fries and a drink.
Yes, the sourdough is grilled for a crispy and golden texture.
