Jalapeño-Onion Smash Burgers

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.

Featured in Family Dinner Ideas.

Fatiha
Updated on Sun, 05 Jan 2025 01:27:43 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

My Favorite Spicy Smash Burgers with Jalapeños and Caramelized Onions

After years of burger experiments in my kitchen, this spicy creation became an instant family favorite. The combination of fresh jalapeños and sweet onions tucked under a crispy beef patty creates an incredible flavor burst in every bite. My guests always beg for the recipe when I serve these at cookouts, and now they're a staple in our weekend dinner rotation.

What Makes These Burgers Special

The magic happens when those jalapeños and onions cook right under the patty, soaking up all those delicious meat juices. I love how the cheese gets perfectly melty and the buns develop a beautiful golden crust. The best part? You can make these restaurant quality burgers right in your own kitchen without any fancy equipment. My husband prefers his extra spicy while the kids like theirs milder, so I usually prepare them both ways.

Simple Ingredients for Amazing Flavor

  • Ground Beef: Go for 80/20 lean to fat ratio for those perfectly juicy flavorful patties.
  • Fresh Jalapeños: Choose bright green firm peppers for the best kick of heat and crunch.
  • Sweet Onions: Vidalia or Maui onions work best here their natural sweetness balances the heat.
  • American Cheese: The classic choice that melts into all those crispy nooks and crannies.
  • Burger Sauce: My special blend of mayo ketchup and seasonings takes these over the top.
  • Potato Buns: Soft yet sturdy enough to hold up to all those amazing juices.
  • Salt and Pepper: Simple seasoning that lets the burger shine.

Kitchen to Table Instructions

Start by whipping up my burger sauce a family recipe that combines creamy mayo, tangy ketchup and a splash of Worcestershire sauce. While that chills, get your cooking surface nice and hot. I like using my cast iron skillet for the best crust. Cook the jalapeños and onions until they get all sweet and caramelized. Then comes the fun part smashing the beef balls right over those vegetables. The sizzle is just music to my ears! Once the edges get crispy, flip them over and let that cheese melt into all the nooks and crannies.

My Time Tested Tricks

Through countless burger nights, I've learned that using a solid metal spatula makes all the difference when smashing the patties. Patience is key here let those edges get properly crispy before even thinking about flipping. If you're cooking for both spice lovers and mild preference folks, I have a trick remove the jalapeño seeds for a gentler heat. And always toast those buns they need to stand up to 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

Serving Your Burgers

In our house, these burgers are always accompanied by crispy oven fries or a fresh summer salad. When the weather is nice, we enjoy them outside with ice cold drinks the perfect way to handle that lovely kick of heat. If you end up with leftovers which rarely happens in my home keep the components separate and give those patties a quick reheat in a hot skillet to bring back their crispy edges.

Wisdom from My Kitchen

Over the years, I've picked up some valuable burger wisdom. Using a mix of different beef cuts really elevates the flavor. Always be gentle with your patties one good smash is all they need. And just like with a good steak, letting the burgers rest for a minute helps keep all those delicious juices where they belong. These little details make all the difference between a good burger and an amazing one.

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.

Smash Burger Recipe

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