The Duke Smash And Beyond: 7 Secrets To Diesel And Duke's Reign As New Jersey's Best Burger Chain

As of December 2025, the New Jersey culinary scene continues to be dominated by the simple yet powerful presence of Diesel and Duke. This homegrown burger chain has cemented its status as the go-to spot for those craving a truly high-quality, cooked-to-order craft burger, distinguishing itself in a crowded market by sticking to a core philosophy: never-frozen beef and fresh ingredients. The enduring popularity, particularly for their late-night comfort food offerings, proves that sometimes, the best things in life are found in simplicity—and a perfect smash burger.

The success of Diesel and Duke is more than just a local phenomenon; it’s a masterclass in building a brand around quality and consistency. From the legendary "Duke Smash" to the spicy kick of the "Holypeno Burger," this eatery has cultivated a loyal following across its key New Jersey locations, making it a must-visit destination for gourmet burger enthusiasts.

The Essential Guide to Diesel and Duke: Locations, Menu Highlights, and Company History

Diesel and Duke first took the New Jersey food scene by storm in 2014, quickly becoming a local favorite thanks to its commitment to fresh, simple, and delicious food. The original concept was simple: deliver a superior burger experience without the complexity of a massive menu.

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The brand's success is intrinsically linked to one of its founders, Kevin Rezvani, who later went on to launch the highly successful "7th Street Burger" concept, a testament to the enduring appeal of the smash burger model he helped popularize.

Current Diesel and Duke Locations (2025 Update)

As of the most recent updates, Diesel and Duke maintains a focused presence in three core New Jersey towns, each serving as a hub for late-night cravings and quality dining.

• Montclair, NJ: 20 Church St. (A popular spot known for its vibrant atmosphere.)
• Jersey City, NJ: 389 Monmouth St. (A late-night haven for comfort food seekers.)
• Princeton, NJ: 124 Nassau Ave. (Notably took over a former 30 Burgers space in 2019.)

The Must-Try Menu Entities

The menu is intentionally lean, focusing on executing a few items perfectly. The burgers are handmade, cooked to order, and the beef is always fresh and never frozen.

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• Duke Smash: The signature item, featuring a patty smashed with super thin raw onions, American Cheese, Pickles, Homemade Aioli, and Ketchup. It’s the quintessential smash burger experience.
• Holypeno Burger: A fan-favorite for those who like heat. It’s loaded with bacon, aged cheddar, jalapeños, caramelized onions, and spicy mayo.
• The Standard Burger: The classic, no-frills option that showcases the quality of the beef and simple American cheese.
• Chicken Smash: A poultry alternative to their famous beef smash burger.

The 7 Secrets to Diesel and Duke's Unstoppable Appeal

What makes this modest New Jersey chain consistently rank among the best burger joints in the state? It boils down to a few key operational and conceptual choices that elevate their offerings above standard fast-food fare.

1. The "Never Frozen" Commitment

The foundation of the entire Diesel and Duke concept rests on the quality of its meat. By using only fresh, never-frozen beef, they ensure a superior flavor and texture that is immediately noticeable. This commitment to fresh ingredients is the single biggest factor separating them from larger, more commercial chains.

2. Mastering the Art of the Smash Burger

The "Duke Smash" is not just a burger; it's a perfectly executed technique. The process of smashing the patty onto the griddle creates a maximum surface area, resulting in a thin, crispy, and deeply caramelized crust—the Maillard reaction at its finest. This crispy edge is what burger aficionados chase, and Diesel and Duke delivers it consistently.

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3. The Iconic Sides: Poutine and Chopped Cheese Fries

While the burgers are the main event, the sides offer incredible topical authority and variety. Their Hand Cut Fries are freshly cut, hand-washed, and fried to a perfect crisp. However, the real stars are the elevated options: Poutine (crisp fries smothered in house gravy and cheese curds) and the Chopped Cheese Fries, a decadent fusion of two comfort food classics.

4. The Strategic Late-Night Focus

Diesel and Duke has strategically positioned itself as a late-night comfort food haven, particularly in college towns like Princeton and bustling areas like Jersey City. Their hours often extend later than many competitors, capturing the crucial demographic looking for high-quality, satisfying food after standard dinner hours. This focus has made them an essential part of the local nightlife.

Beyond the Burger: Hidden Menu Gems and Sweet Endings

To maintain topical authority and cater to all cravings, the menu extends into unique and delightful categories, ensuring there's something for everyone, even the family pet.

5. The Dessert That Defines Comfort: Fried Oreos

No late-night comfort meal is complete without a decadent dessert, and Diesel and Duke's Fried Oreos are the perfect sweet ending. These deep-fried, powdered-sugar-dusted treats are a nostalgic favorite that adds a playful, indulgent element to the menu.

6. Catering to the Whole Family (Including 'The Pup')

In a charming nod to its local community and the trend of dog-friendly dining, the menu includes a "For the Pup" section. While simple, this small detail demonstrates a community-focused approach that fosters goodwill and loyalty among local residents and dog owners.

7. The Holypeno Effect: Perfecting the Spicy Burger

The Holypeno Burger is a testament to their ability to balance heat and flavor. The combination of spicy jalapeños and creamy, savory ingredients like aged cheddar, caramelized onions, and spicy mayo creates a complex, addictive flavor profile. It’s a carefully constructed gourmet burger that transcends the simple "spicy" label, making it a favorite for those who crave a flavorful kick.

In conclusion, Diesel and Duke's continued success in 2025 is a result of unwavering dedication to its core principles: fresh, never-frozen beef, perfected cooking techniques like the smash, and a focused menu of high-impact items. Whether you're a local in Montclair or just passing through Princeton, a visit to this New Jersey institution for a Duke Smash and a side of Poutine is a culinary experience that consistently lives up to its legendary reputation.