Smash Burger Recipe: The Kosher Guide to Making One at Home
A great smash burger recipe comes down to a few things that matter more than fancy ingredients: properly portioned beef, a seriously hot cooking surface, and a fast, firm smash that gives the patty maximum contact with the heat. This kosher version draws on the techniques used by Smash House Burgers, founded by Benji Haimoff and described by the brand as America’s first Glatt Kosher smashed burger restaurant.
We’ll also tackle the parts a standard recipe often skips, including kosher beef, dairy-free cheese and kosher buns. If cooking suddenly sounds like more effort than you bargained for, you can always view the Smash House Burgers menu instead.
What Makes a Kosher Smash Burger Different
The actual smash technique does not change, even if the burger is kosher. You still want thin beef patties with a deeply browned crust and crisp edges. The difference is in the ingredients you choose and how they are sourced and combined.
Kosher Beef: What to Look for & Where to Source It
Start with certified kosher beef from a kosher butcher, a kosher supermarket, or another trusted supplier that carries meat under recognized kosher supervision.
For a homemade smash burger, look for ground beef with enough fat to stay juicy when pressed thin. An 80/20 ground beef blend, meaning approximately 80% lean meat and 20% fat, is a strong choice for this style of cooking.
You do not need to hunt down a special kosher brisket blend for the technique to work. If your butcher offers one, great. Otherwise, good ground beef with a suitable fat content will do the job.
Keep the beef cold and handle it lightly. You want loose portions rather than densely packed burger patties.
The No-Dairy Rule & Why It Changes the Cheese Decision
A kosher meat burger cannot be combined with dairy. That means the usual slice of dairy American cheese is out when you’re building a kosher beef burger.
Instead, use a certified kosher dairy-free cheese or pareve cheese. Smash House follows the same principle on its current menu, using vegan cheese on burgers, including the Double Smashed, Classic Smashed, and Loaded Smashed.
Check the kosher certification rather than assuming that a product is pareve simply because it is marketed as vegan.
Kosher Buns: What Works & What to Avoid
Choose a certified kosher, pareve bun if you are serving it with beef.
A soft sesame bun works particularly well because it compresses around the thin patty without overpowering it. A brioche bun can work too, but traditional brioche contains butter and sometimes milk, so you need a certified pareve version for a kosher meat burger.
Always check the packaging rather than relying on the name of the bun.
The Equipment You Need
You do not need restaurant equipment to make a good smash burger at home, but the right cooking surface makes a big difference.
Cast Iron Skillet vs Flat-Top Griddle
A flat-top griddle gives you plenty of room to smash and flip several patties at once. It is the closest home setup to the cooking method used in smash burger restaurants.
No griddle? A heavy cast-iron skillet works extremely well because it retains heat and provides the flat surface needed to build that crust.
Whatever you use, get it properly hot before the beef touches it.
The Burger Press (or What to Use Instead)
A sturdy burger press makes smashing easier, but you do not need to buy one for this recipe. A firm metal spatula works well, particularly if you press it down with the handle of a second spatula or another heat-safe utensil.
The important part is applying firm, even pressure immediately after the beef hits the hot surface.
Parchment Paper & Why It Matters
Place a small square of parchment paper between the meat and your press or spatula before smashing.
It helps stop the raw beef from sticking to your equipment, which means the thin patty stays on the griddle where it belongs instead of following your spatula back up.
Smash Burger Recipe
Recipe yield: 4 double smash burgers
Prep time: About 15 minutes
Cook time: About 10 minutes
Ingredients
- 20 oz certified kosher 80/20 ground beef
- 4 certified kosher pareve burger buns
- 8 slices certified kosher dairy-free or pareve American-style cheese
- Kosher salt
- Freshly cracked black pepper
- Thinly sliced onion, optional
- Pickles, lettuce or tomato, optional
- Kosher smash-style sauce of your choice
- Neutral oil, only if your cooking surface requires it
Patty Weight & Portioning
Divide the beef into eight loose portions, each approximately 2.5 oz, for four double burgers.
Do not flatten them beforehand. Roll each portion very lightly into a ball and refrigerate until the cooking surface is ready.
Smash House has previously identified roughly 2.5–4 oz per patty as the sweet spot for smash burgers, with lighter patties particularly suited to double stacks.
Step-by-Step Method
- Heat your cast iron skillet or griddle over high heat until very hot.
- Split and lightly toast the inside of each bun, then set aside.
- Place two cold beef portions onto the cooking surface, leaving enough room between them to spread.
- Put parchment over each portion, then press the beef firmly into a thin patty.
- Remove the parchment and season the exposed surface with kosher salt and cracked pepper.
- Leave the patty alone while the underside develops its browned crust.
- Scrape firmly underneath with a metal spatula and flip.
- Add a slice of dairy-free cheese and cook the second side briefly until the beef is cooked through to a safe temperature and the cheese has softened.
- Stack two patties and transfer them directly to the prepared bun.
- Add sauce and your chosen toppings, then serve immediately.
Smash House describes its own seasoning foundation as kosher salt and cracked pepper, with the meat smashed onto a hot cooking surface to develop the characteristic sear.
Smash Timing: The One Thing Most Home Cooks Get Wrong
The smash happens at the beginning, not halfway through cooking.
Once the beef hits the hot surface, press it firmly and quickly. That creates more direct contact between the meat and the griddle, promoting the Maillard reaction, which produces the dark, savory, caramelized crust and the thin, crispy edges that define the style.
Do not keep pressing after the patty has begun cooking. At that point, you are no longer improving surface contact. You risk squeezing moisture out of the meat instead.
Dairy-Free Cheese Guide for a Kosher Build
You can absolutely make a convincing cheeseburger-style smash while keeping the beef-and-dairy separation intact.
Pareve American-Style Slices
Look for certified kosher pareve American-style slices or another melt-friendly vegan cheese.
American-style slices are particularly useful because their shape and texture suit the thin patty. Again, “vegan” alone does not establish kosher status, so check the certification.
How to Melt Dairy-Free Cheese Properly
Some dairy-free cheeses need a little encouragement to melt.
Add the slice immediately after flipping the patty. If needed, cover the burger briefly with a heat-safe dome or lid. The trapped heat helps soften the cheese without forcing you to overcook the beef.
Toppings That Work Without Dairy
Pickles, raw or caramelized onions, lettuce and tomato all work without bringing dairy into the build. You can also introduce heat with jalapeños or lean into the burger’s savory side with a good kosher sauce.
Smash House itself uses toppings including pickles, caramelized onion, jalapeños and vegan cheese across its current burger menu.
The Sauce
A thin smash patty has plenty of beefy flavor and a browned surface, so the sauce should support it rather than drown it.
What Goes Into a Classic Smash Burger Sauce
A simple homemade smash burger sauce can start with mayonnaise, ketchup, and mustard, with finely chopped pickle or a splash of pickle brine for acidity.
Adjust the proportions to your taste. The goal is creamy, tangy, and slightly sharp rather than overwhelmingly sweet.
Smash House keeps its own Smash Sauce formula to itself, so this is a home-style sauce rather than a copy of the restaurant recipe. You can read more about what makes a smash burger and the technique behind the style.
Keeping It Kosher: Ingredient Checks
Every component still counts. Check the kosher status of your mayonnaise, ketchup, mustard, and other additions, particularly when using flavored sauces or condiments with longer ingredient lists.
For a meat burger, your finished sauce must also remain dairy-free.
Building the Burger
Once those patties leave the griddle, move quickly. A smash burger is at its best when the crust is hot, and the stack has not had time to steam itself soft.
Single vs Double Patty
A single 3.5–4 oz patty gives you a more substantial individual layer. Two 2.5 oz patties create a classic double smash burger with more browned surface area and more crispy edges.
Smash House uses both single and stacked smash burger formats on its menu, so there is no single correct answer here.
Bun Toasting
Lightly toast the cut surface of the bun before cooking the patties. You want a little structure where the sauce and meat meet the bread, not a bun toasted into a crouton.
Soft outside, lightly toasted inside. That is enough.
Assembly Order & Why It Matters
Start with the sauce on the bottom bun, then add your hot patty or double stack. Add pickles or onions next, then any fresh lettuce or tomato before closing the burger.
Keeping the hot meat close to the bun and the fresh ingredients farther from the griddle helps preserve the contrast between the crisp crust, the soft bread, and the cool toppings.
Benji Haimoff on What Makes the Perfect Smash
For Smash House founder Benji Haimoff, consistency is central to getting the burger right. Smash House describes its technique as centered on properly weighted beef, a hot flat-top, and a fast press that creates maximum surface contact and a browned crust. The brand also seasons simply, using kosher salt and cracked pepper rather than burying the beef under an elaborate seasoning mix.
Haimoff has summed up the broader Smash House approach this way: “The whole point was to have quick and delicious glatt kosher food” while keeping it consistent.
Smash Burger Recipe FAQs
What Is the Best Beef for a Smash Burger Recipe?
Ground beef with enough fat to brown well while remaining juicy is ideal. 80/20 ground beef is a reliable choice for home cooking. For a kosher burger, make sure the beef carries appropriate kosher certification.
How Much Should a Smash Burger Patty Weigh?
Around 2.5–4 oz per patty works well. Smaller patties are ideal for double stacks, while a 3.5–4 oz portion works well for a single smash burger.
Can You Make a Smash Burger Without a Griddle?
Yes. A heavy cast-iron skillet provides the hot, flat surface needed to create the characteristic crust.
What Dairy-Free Cheese Works Best for a Kosher Build?
A certified kosher pareve American-style slice is one of the easiest options because it melts quickly over a thin patty. Always confirm that the specific product is kosher and pareve.
How Long Does It Take to Cook a Smash Burger?
Thin patties cook very quickly, generally within a few minutes, although the exact time depends on patty thickness and cooking temperature. Cook ground beef to the appropriate safe internal temperature rather than relying only on the clock.
Skip the Griddle & Order From Smash House
Making a homemade smash burger is mostly about getting the fundamentals right: good beef, proper portioning and enough heat to build that unmistakable crust.
But some days, cleaning a cast iron skillet is not part of the dream.
You can view the Smash House Burgers menu, visit Smash House Burgers 37th Street, or dig deeper into what a smash burger is before deciding whether tonight calls for homemade or professionally smashed.
