Jalapeno Smash Burgers

Featured in Family Dinner Ideas.

These smash burgers feature ultra-thin patties with crispy edges, topped with melted American cheese and caramelized jalapeños and onions. A special burger sauce adds the perfect finishing touch.

Fatiha
Updated on Sun, 11 May 2025 20:58:12 GMT
A close-up of a gourmet burger featuring a grilled patty, melted cheese, jalapeños, and a creamy sauce, served on a toasted bun with caramelized onions. Pin it
A close-up of a gourmet burger featuring a grilled patty, melted cheese, jalapeños, and a creamy sauce, served on a toasted bun with caramelized onions. | zestplate.com

Incredible Juicy Smash Burgers with Jalapeños and Sweet Onions

I've spent countless hours trying different burger recipes, and this spicy version quickly became our number one choice at home. When those fresh jalapeños and caramelized onions sink beneath a crunchy beef patty, every mouthful delivers amazing flavor. Whenever I make these at barbecues, everyone wants to know my secret, and they've now become our go-to weekend meal.

Why These Burgers Stand Out

Everything comes together when the jalapeños and onions cook underneath the burger, soaking in all that tasty beef flavor. The cheese melts perfectly and the buns turn golden and crisp. You'll love that you can make these top-notch burgers at home with basic tools. My kids enjoy the milder version while my husband can't get enough of the extra spicy ones, so I usually make both.

Basic Ingredients for Knockout Taste

  • Ground Beef: Stick with 80/20 fat content for super juicy, tasty burgers.
  • Fresh Jalapeños: Look for firm, bright green ones for the best spice and texture.
  • Sweet Onions: Try Maui or Vidalia varieties since their sweetness cuts through the heat nicely.
  • American Cheese: It's perfect because it melts into every crispy bit of the patty.
  • Burger Sauce: My unique mix of mayo, ketchup and spices makes these burgers unforgettable.
  • Potato Buns: They're soft but won't fall apart with all those yummy juices.
  • Salt and Pepper: Basic seasonings that let the burger's true flavor come through.

How To Make Spicy Smash Burgers

First, mix up my burger sauce - it's an old family mix of creamy mayo, ketchup, and a dash of Worcestershire. Let that cool in the fridge while you heat up your pan. I always grab my cast iron for the crispiest results. Get those jalapeños and onions cooking until they're soft and sweet. Then comes the best part - smashing those beef balls right onto the veggies. I love that sizzling sound! Wait for the edges to turn crispy, then flip and watch that cheese melt everywhere.

My Proven Cooking Tips

After making these countless times, I've found that you really need a heavy metal spatula for the best smash. Don't rush the process - those edges need time to get nice and crispy before you flip them. Got family members who can't handle heat? Just take out the jalapeño seeds for a milder version. And never skip toasting your buns! They need to be sturdy enough for all that juicy goodness.

A delicious cheeseburger stacked with two beef patties, jalapeños, grilled onions, and a creamy sauce, served on a toasted bun. Pin it
A delicious cheeseburger stacked with two beef patties, jalapeños, grilled onions, and a creamy sauce, served on a toasted bun. | zestplate.com

Enjoying Your Burgers

At our place, we always pair these burgers with oven-baked fries or a cool summer salad. When it's nice out, there's nothing better than eating them outside with cold drinks - perfect for cooling down after that spicy kick. If you somehow end up with extras, which almost never happens at my house, store everything separately and quickly reheat the patties in a hot pan to bring back that awesome crispiness.

Lessons From My Burger Journey

Through many years of burger making, I've learned some useful tricks. Try combining different types of beef for better flavor. Don't overwork your meat - one good smash is all you need. And just like with steaks, let your burgers sit for a minute before serving to keep all those tasty juices inside. These small details turn ordinary burgers into something truly special.

Frequently Asked Questions

→ Why smash the burgers?

Smashing creates more surface area for browning and crispy edges while keeping inside juicy.

→ Why use American cheese?

Melts perfectly and provides classic burger taste and texture.

→ Can I make them less spicy?

Use fewer jalapeños or remove seeds for milder heat.

→ Why preheat the skillet?

Ensures proper searing and prevents sticking.

→ Do I need a burger press?

No, can use sturdy spatula with parchment paper to press burgers.

Jalapeno Smash Burgers

Crispy-edged smash burgers topped with melted cheese, caramelized onions and jalapeños, served with a special burger sauce.

Prep Time
15 Minutes
Cook Time
15 Minutes
Total Time
30 Minutes
By: Fatiha

Category: Main Dishes

Difficulty: Intermediate

Cuisine: American

Yield: 4 Servings (4)

Dietary: ~

Ingredients

01 3 tablespoons mayonnaise.
02 1 1/2 tablespoons ketchup.
03 1 teaspoon Worcestershire sauce.
04 1/2 teaspoon black pepper.
05 1/4 teaspoon garlic powder.
06 1/4 teaspoon kosher salt.
07 1 1/2 pounds ground beef (80% lean).
08 1 large yellow onion, sliced thin.
09 1 large jalapeño, sliced thin.
10 4 American cheese slices.
11 4 hamburger buns.
12 1 teaspoon canola oil.
13 1 1/4 teaspoons kosher salt.
14 3/4 teaspoon black pepper.

Instructions

Step 01

Combine mayonnaise, ketchup, Worcestershire sauce, pepper, garlic powder and salt in small bowl until completely smooth.

Step 02

Divide ground beef into exactly eight 3-ounce portions and gently shape into loose balls without overworking meat.

Step 03

Preheat cast iron skillet or griddle on grill or stovetop until very hot (450-500°F).

Step 04

Cut 3-inch square of parchment paper for pressing burgers and set aside nearby.

Step 05

Drizzle preheated skillet with oil and arrange onion slices in eight separate quarter-cup mounds.

Step 06

Top each onion mound with thin jalapeño slices and season with portion of salt and pepper mixture.

Step 07

Cook onion-jalapeño mounds undisturbed for 30-60 seconds until beginning to brown.

Step 08

Place one beef ball on each onion mound and cover with parchment paper square.

Step 09

Press firmly with spatula or burger press to create 4-inch wide ultra-thin patties.

Step 10

Season flattened patties with remaining salt and pepper mixture.

Step 11

Cook undisturbed for 2-3 minutes until edges become crispy and browned.

Step 12

Carefully flip patties so onion-jalapeño mixture is on top.

Step 13

Place cheese slices on four of the patties and cook 1.5-2 minutes until well browned.

Step 14

Stack plain patties on cheese-covered ones to create four double burgers.

Step 15

Spread sauce on toasted buns and serve burgers immediately while hot.

Notes

  1. Restaurant quality.
  2. Crispy edges.
  3. Spicy kick.
  4. Perfect technique.

Tools You'll Need

  • Cast iron skillet/griddle.
  • Sturdy spatula.
  • Parchment paper.
  • Small bowl.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy (cheese).
  • Eggs (mayonnaise).
  • Wheat (buns).

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 650
  • Total Fat: 42 g
  • Total Carbohydrate: 35 g
  • Protein: 38 g