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The Complete Smash Burger Guide

What Is a Smash Burger?

Everything you need to know about the smash burger — the cooking technique, the science behind the crust, the history, and our famous smashburger sauce recipe. From the kitchen of Redondos Miami.

The Simple Idea That Changed Burgers Forever

A smash burger is exactly what it sounds like: a ball of ground beef, smashed flat on a blazing-hot cooking surface. But that simple action unlocks a chain reaction of flavor that thick, traditional burgers can never match.

When you press fresh ground beef against a 400–450°F griddle, something magical happens. The proteins and sugars in the meat undergo the Maillard reaction — the same chemical process that browns bread into toast or turns sugar into caramel. Because a smashed patty has 40–50% more surface area touching the hot griddle than a thick patty, it develops an intensely flavorful, crispy crust in under two minutes.

The result? A thin patty with lacy, caramelized edges that shatter when you bite through them, giving way to a juicy, beefy interior. Add melted American cheese, a soft bun, and a well-made sauce, and you have what many consider the perfect burger. At Redondos on Bird Road in Miami, we've been perfecting this technique on tens of thousands of burgers.

Smash Burger vs Regular Burger

FeatureSmash BurgerRegular Burger
Patty thickness~1/4 inch (thin)3/4–1 inch (thick)
Surface crustDeep Maillard crust (40–50% more)Moderate sear
Cooking time2–3 min per side5–7 min per side
TextureCrispy edges, tender centerUniformly juicy
Typical patty size2–3 oz4–6 oz
Calories (single)350–420 kcal480–550 kcal
Best cooking surfaceFlat-top griddle or cast ironGrill, griddle, or broiler
Cheese meltSuperior — cheese melts from residual heatGood — often needs lid/dome

How to Make a Perfect Smash Burger

1

Start with the Right Meat

Use 80/20 ground chuck (certified Angus if possible). The 20% fat is essential — it creates flavor and those crispy edges. At Redondos, we freshly grind our beef daily. Never use anything leaner than 80/20 for smash burgers.

2

Form Loose Balls — Don't Over-Pack

Portion 2–3 oz balls of ground beef. Handle the meat as little as possible — you want a loose texture, not a dense puck. Over-working the beef produces tough, dry patties. Season the outside of the ball with salt and pepper only.

3

Get the Surface Screaming Hot

Heat your flat-top griddle or cast-iron pan to 400–450°F (200–230°C). At Redondos, our griddles run at the top of this range. The high heat is non-negotiable — it's what triggers the Maillard reaction within seconds of contact.

4

Smash and Don't Touch

Place the beef ball on the hot surface and immediately press down firmly with a flat spatula or burger press for 10–15 seconds. Flatten to about 1/4 inch thick. Then leave it alone — don't press again. The crust needs 2–3 minutes of undisturbed contact to develop properly.

5

Flip Once, Add Cheese, Serve Fast

After 2–3 minutes, use a thin metal spatula to scrape the patty off the griddle (don't leave any crust behind — that's the flavor). Flip, immediately add cheese, and cook 60–90 seconds more. The residual heat melts the cheese perfectly. Serve immediately on a soft, toasted bun.

The Classic Smashburger Sauce Recipe

This is the classic "special sauce" that goes on virtually every great smash burger. Simple to make, impossible to resist.

Ingredients:

  • • 1/2 cup mayonnaise
  • • 2 tablespoons ketchup
  • • 1 tablespoon yellow mustard
  • • 1 tablespoon finely diced dill pickles (or relish)
  • • 1 teaspoon garlic powder
  • • 1/2 teaspoon smoked paprika
  • • Pinch of cayenne pepper (optional)
  • • 1 teaspoon white vinegar

Instructions:

  1. Combine all ingredients in a bowl and whisk until smooth.
  2. Cover and refrigerate for at least 30 minutes to let flavors meld.
  3. Spread generously on toasted buns before assembling your smash burger.
  4. Store in the fridge for up to 1 week.

Pro tip from Redondos: For a smokier version, swap regular paprika for smoked paprika and add a teaspoon of chipotle adobo sauce. The smoky-sweet heat pairs perfectly with our crispy smash patties.

A Brief History of the Smash Burger

The smash burger didn't start in a test kitchen or a Michelin-starred restaurant. It started on the flat-top griddles of 1950s American diners in the Midwest, where short-order cooks discovered that pressing a ball of beef flat produced a crispier, more flavorful burger in half the time.

For decades, this technique lived in obscurity while thick, steakhouse-style burgers dominated the American market. The turning point came in 2007 when Smashburger launched as a chain, bringing the technique to national attention. But it was the 2010s food truck and Instagram revolution that truly ignited the smash burger craze, as photogenic, crispy-edged patties became social media gold.

Today, the smash burger is recognized as the dominant trend in American fast-casual dining. From Oklahoma onion smash burgers to butter-basted doubles, the technique has spawned countless variations. At Redondos in Miami, we bring our own Latin twist with options like the Patacón Burger (served on crispy fried plantains) and house-made sauces inspired by Caribbean and South American flavors.

Smash Burger FAQ

What is a smash burger?
A smash burger is a burger made by pressing (smashing) a ball of ground beef onto a very hot flat-top griddle or cast-iron pan. The smashing creates maximum surface contact, producing a thin patty with crispy, caramelized edges through the Maillard reaction. The result is a burger with an intensely beefy crust and juicy interior that is impossible to achieve with a traditional thick patty.
Who invented the smash burger?
The smash burger technique dates back to the 1950s at diners across the American Midwest. Bill Culvertson of Smashburger (founded 2007) is credited with popularizing the term nationally, but the technique was used decades earlier at places like Dairy Cheer in Louisville, KY (1959). Today, the smash burger has become the dominant trend in modern American fast-casual dining.
What is the difference between a smash burger and a regular burger?
The key differences are: 1) Thickness — smash burgers are pressed thin (about 1/4 inch) while regular burgers stay thick (3/4 to 1 inch). 2) Crust — the smashing technique creates 40-50% more surface contact with the griddle, producing a deeply caramelized crust. 3) Cooking time — smash burgers cook in 2-3 minutes per side vs 5-7 minutes for thick burgers. 4) Texture — smash burgers have crispy edges with a tender center, while regular burgers are uniformly juicy.
What is smashburger sauce made of?
Classic smashburger sauce is a variation of Thousand Island or 'special sauce.' The base recipe combines: 1/2 cup mayonnaise, 2 tablespoons ketchup, 1 tablespoon yellow mustard, 1 tablespoon dill pickle relish, 1 teaspoon garlic powder, 1/2 teaspoon smoked paprika, and a pinch of cayenne. Mix and refrigerate for at least 30 minutes before serving to let flavors meld.
What temperature should you cook smash burgers?
Smash burgers require very high heat — 400 to 450°F (200-230°C) on the cooking surface. At Redondos, our flat-top griddles run at the high end of this range. The intense heat is critical: it triggers rapid Maillard reaction (caramelization) that creates the signature crispy crust within 60-90 seconds of smashing.
What is the best meat for smash burgers?
80/20 ground chuck (80% lean, 20% fat) is the ideal choice for smash burgers. The 20% fat content provides enough juice and flavor while rendering out during the smashing process to create crispy edges. At Redondos, we use certified Angus beef in the 80/20 ratio, freshly ground for optimal texture. Leaner blends (90/10) produce dry, flavorless smash burgers.
Can you make butter smash burgers?
Yes! Butter smash burgers add a tablespoon of cold butter on top of the patty just after smashing, or brush the griddle with butter before placing the beef ball. The butter melts into the crust, adding richness and enhancing the Maillard reaction for even crispier edges. It adds approximately 100 calories per tablespoon but dramatically improves flavor.
How do you smash a burger without it sticking?
Use parchment paper or a lightly oiled spatula. Place the beef ball on the hot griddle, lay parchment paper on top, then press firmly with a flat spatula or burger press for 10-15 seconds. The parchment prevents sticking while allowing maximum pressure. At Redondos, our cooks use heavy-duty stainless steel spatulas on a well-seasoned flat-top — the high heat and beef fat create a natural non-stick surface.

Taste the Best Smash Burger in Miami

Now that you know what makes a smash burger special, come try ours. Certified Angus beef, crispy edges, and flavors that keep Miami coming back.

📍 3791 Bird Road, Miami📞 (305) 456-1346🕐 Mon-Sat 10AM-9PM

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