Beef on Weck is the signature sandwich of Buffalo, New York, consisting of thinly sliced rare roast beef piled onto a Kummelweck roll—a Kaiser-style roll topped with coarse salt and caraway seeds. The beef is often lightly dipped in its own warm jus before being placed on the roll and traditionally served with prepared horseradish. The result is an elegant yet hearty sandwich that perfectly balances tender beef, savory au jus, sharp horseradish, and the distinctive salty, aromatic roll.
Unlike many roast beef sandwiches that rely on cheese, elaborate toppings, or heavy sauces, Beef on Weck succeeds through restraint. Every ingredient serves a purpose, allowing the flavor of perfectly roasted beef to remain the centerpiece while the kummelweck roll provides the sandwich’s unmistakable identity.
How Would They Describe It?
Christopher Kimball: “Beef on Weck demonstrates how a handful of carefully prepared ingredients—properly roasted beef, flavorful jus, and an exceptional roll—can create a sandwich that’s both elegant and deeply satisfying.”
J. Kenji López-Alt: “The key is roasting the beef gently to preserve its tenderness, slicing it paper-thin, and briefly dipping it into hot jus so every bite stays juicy without becoming soggy.”
Anthony Bourdain: “It’s Buffalo’s answer to roast beef perfection—simple, unapologetic, and built around meat that’s good enough not to hide behind a pile of toppings.”
Bon Appétit Magazine: “Beef on Weck is an understated classic, pairing rosy roast beef, aromatic caraway, crunchy salt, and fiery horseradish into one of America’s most distinctive regional sandwiches.”
What Else Should I Know?
The defining feature of Beef on Weck isn’t just the roast beef—it’s the Kummelweck roll. “Kümmel” is the German word for caraway, while “weck” refers to a Kaiser-style roll. The coarse salt and caraway seeds baked onto the crust provide bursts of flavor that distinguish the sandwich from ordinary roast beef sandwiches.
Traditional Beef on Weck is intentionally minimalist. Cheese, lettuce, tomatoes, and mayonnaise are generally absent because they distract from the harmony between the beef, jus, horseradish, and roll. Many restaurants also serve the accompanying jus separately, allowing diners to dip the sandwich much like a French Dip.
Origins and History
Beef on Weck originated in Buffalo, New York, during the late nineteenth century, a period when German immigrants strongly influenced the city’s food culture. The kummelweck roll itself reflects that heritage, combining the traditional Kaiser roll with coarse salt and fragrant caraway seeds. The sandwich is widely credited to William Wahr, a Buffalo baker who is believed to have introduced the kummelweck roll around the turn of the twentieth century.
One popular story suggests that tavern owners favored the salted rolls because patrons became thirsty and purchased more beer. Whether or not that tale is entirely true, the sandwich became a staple throughout Buffalo’s taverns, restaurants, and breweries. Today, Beef on Weck remains one of western New York’s defining culinary traditions and is considered every bit as iconic to Buffalo as the Buffalo wing.

Primary Ingredients
- Roast Beef: Thinly sliced medium-rare top round, eye of round, or prime rib provides tender, beefy flavor while remaining juicy when dipped in warm jus.
- Kummelweck Roll: The Kaiser-style roll topped with coarse salt and caraway seeds contributes texture, aromatic spice, and the signature flavor that defines the sandwich.
- Au Jus: Rich beef jus adds moisture and concentrates the natural flavors of the roast without overwhelming the meat.
- Prepared Horseradish: Sharp horseradish cuts through the richness of the beef while adding clean, sinus-clearing heat that complements rather than masks the meat.
- Butter (Optional): A light spread of butter on the roll can add richness while helping protect the bread from excess moisture.
- Optional Enhancements: Creamy horseradish sauce, fresh cracked black pepper, roasted garlic, caramelized onions, sautéed mushrooms, provolone cheese (nontraditional), extra au jus for dipping.
Why It Works
- Perfectly Roasted Beef: Slow roasting preserves tenderness while concentrating the beef’s natural flavor.
- Paper-Thin Slices: Thin slices remain exceptionally tender and readily absorb the warm jus.
- Flavorful Jus: Dipping the beef briefly in hot jus adds moisture and intensifies the roast beef flavor.
- Distinctive Roll: The coarse salt and caraway create bursts of flavor and texture that elevate every bite.
- Sharp Horseradish: The pungent heat balances the richness of the beef without overpowering it.
- Minimal Ingredients: Keeping the sandwich simple allows each component to shine.
- Texture Contrast: Tender beef, chewy bread, crunchy salt, and creamy horseradish create an exceptionally balanced eating experience.

Assembly
The kummelweck roll is sliced and lightly warmed. Prepared horseradish is spread on the bottom half or served on the side. Thin slices of roast beef are briefly dipped into warm au jus before being piled generously onto the roll. Additional jus may be spooned lightly over the meat if desired. The sandwich is closed and traditionally served immediately alongside a cup of hot au jus for dipping.
Does the Preparation Require Any Special Techniques?
Yes. Although the sandwich is simple, several techniques contribute significantly to its quality.
- Slow roasting the beef to a precise medium-rare temperature.
- Allowing the roast to rest thoroughly before slicing.
- Slicing the beef as thinly as possible.
- Heating the jus separately without boiling.
- Briefly dipping the meat into the jus rather than soaking it.
- Warming the roll gently without drying it out.
- Using freshly grated or high-quality prepared horseradish for maximum flavor.
Master Recipe (Makes 2 Sandwiches)
Prep Time: 20 minutes (plus roasting time if preparing the roast)
Cooking Time: 10 minutes (plus approximately 1½–2 hours for roasting)
Assembly Time: 5 minutes
Total Time: Approximately 35 minutes (using cooked roast beef)
Ingredients
- 1 pound cooked medium-rare roast beef (top round, eye of round, or prime rib)
- 2 kummelweck rolls
- 2 cups beef au jus
- Prepared horseradish
- Unsalted butter (optional)
- Freshly ground black pepper
Optional
- Creamy horseradish sauce
- Caramelized onions
- Sautéed mushrooms
Mise en Place
- Slice the roast beef paper-thin.
- Warm the beef au jus.
- Slice the kummelweck rolls.
- Soften the butter if using.
- Portion the prepared horseradish.
- Prepare any optional toppings.
Cooking
- Heat the au jus until hot but not boiling.
- Warm the kummelweck rolls briefly in a 300°F (150°C) oven for 3–4 minutes.
- Dip the sliced roast beef into the hot jus for 10–15 seconds until warmed through.
- Remove the beef immediately to prevent overcooking.
- Lightly butter the rolls if desired.
Assembly
- Spread prepared horseradish on the bottom half of each roll.
- Pile the warmed roast beef generously onto each roll.
- Spoon a small amount of additional jus over the meat if desired.
- Close the sandwiches.
- Serve immediately with individual cups of hot au jus for dipping.
What Else Should I Know?
If you cannot find kummelweck rolls, you can make a close approximation by brushing Kaiser rolls lightly with egg wash, sprinkling them generously with coarse kosher salt and whole caraway seeds, and baking them for several minutes until the topping adheres. While not identical to bakery-made kummelweck rolls, they capture much of the sandwich’s signature flavor. Also remember that the quality of the roast beef determines the quality of the finished sandwich. A properly cooked medium-rare roast sliced extremely thin will always outperform prepackaged deli roast beef.
Equipment That I Used
- Roasting pan with rack
- Instant-read thermometer
- Sharp carving knife or slicing knife
- Meat slicer (optional, for ultra-thin slices)
- Cutting board
- Medium saucepan (for the au jus)
- Small offset spatula or butter knife
- Baking sheet
- Aluminum foil (for resting the roast)
- Serving bowls or ramekins for the au jus
- Tongs for handling the warmed beef
