Jalapeño-Onion Smash Burger

Bold, spicy, and dripping with savory goodness, this Jalapeño-Onion Smash Burger is everything you love about a classic smash burger—amped up with sweet caramelized onions and spicy jalapeños. The crispy-edged patties are smashed thin and seared to perfection, then layered with melty cheese and all your favorite toppings for a burger that hits every flavor note. It’s quick, craveable, and totally irresistible.

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Why You’ll Love This Recipe
Crispy & Juicy – Thin patties develop a crust while staying juicy inside.
Spicy-Sweet Kick – Jalapeños bring the heat, while onions add a savory balance.
Fast & Satisfying – Ready in under 30 minutes from start to finish.
Customizable – Add your favorite sauces, cheeses, and toppings.
Better Than Takeout – Bold flavors and perfect texture, all made at home.

Ingredients You’ll Need

For the Smash Burgers:
1 lb ground beef (80/20 for juicy flavor)
1 tsp salt
½ tsp black pepper
½ tsp garlic powder
4 slices American cheese or cheddar
4 burger buns, toasted
1 tbsp butter (for toasting buns)

For the Jalapeño-Onion Topping:
1 medium onion, thinly sliced
1–2 jalapeños, thinly sliced (seeds removed for less heat)
1 tbsp olive oil or butter
Salt and pepper to taste

Optional Toppings & Add-Ons:
Pickles
Shredded lettuce
Tomato slices
Burger sauce, mayo, or spicy aioli
Sliced avocado
Ketchup or mustard

Tools You’ll Need
Cast iron skillet or griddle
Spatula (metal or burger press recommended)
Knife and cutting board
Small skillet (for onions and jalapeños)

Step-by-Step Instructions

Step 1: Prepare the Jalapeño-Onion Mix

1. Heat 1 tbsp oil or butter in a skillet over medium heat.
2. Add sliced onions and jalapeños.
3. Season with salt and pepper.
4. Cook for 8–10 minutes, stirring occasionally, until softened and caramelized.
5. Set aside and keep warm.

Step 2: Toast the Buns

1. Spread butter on the cut side of each bun.
2. Toast in a dry skillet or on a griddle until golden brown.
3. Remove and set aside.

Step 3: Form the Patties

1. Divide ground beef into 4 loose balls (don’t overwork).
2. Season lightly with salt, pepper, and garlic powder.

Step 4: Smash & Cook the Burgers

1. Preheat a cast iron skillet or griddle over high heat until very hot.
2. Add 1–2 patties at a time and immediately smash flat using a spatula or burger press (aim for ¼-inch thick).
3. Cook for 2–3 minutes, without moving, until edges are crispy and brown.
4. Flip, top with a slice of cheese, and cook for 1 minute more until melted.
5. Repeat with remaining patties.

Step 5: Assemble the Burgers

1. Spread burger sauce or mayo on the bottom bun.
2. Add lettuce and tomato if using.
3. Place the burger patty on top, followed by the jalapeño-onion mix.
4. Top with pickles or avocado if desired.
5. Finish with the top bun and serve hot.

Tips for the Best Smash Burgers
Use High Heat – A hot pan gives that perfect crispy edge.
Don’t Overwork the Beef – Keep the meat loosely packed for tenderness.
Smash Right Away – Press the patties down immediately after hitting the pan.
Keep It Thin – Thinner patties = better crust and faster cook time.
Layer Flavors – Don’t skip the sauce, jalapeños, and cheese—they bring it all together.

Serving Suggestions
Serve with crispy fries, onion rings, or garlic Parmesan wedges.
Add a side of coleslaw or a pickle spear for classic diner vibes.
Pair with a cold lemonade, iced tea, or a fizzy soda.
Make it a double stack for extra indulgence.

How to Store & Reheat

Storing:
Store cooked patties in an airtight container in the fridge for up to 3 days.

Reheating:
Skillet: Reheat over medium heat with a splash of water and covered to steam.
Microwave: Heat in 30-second intervals. Best for leftovers, not ideal for preserving crispiness.

Frequently Asked Questions

1. Can I use turkey or chicken instead of beef?
   Yes! Just make sure to cook thoroughly and use oil to help with crisping.
2. How spicy are the jalapeños?
   With seeds removed, they add a mild heat. Leave the seeds in for extra kick or use pickled jalapeños for tang.
3. Can I caramelize the onions longer?
   Absolutely! Low and slow will give you deeper sweetness if you have time.
4. What’s the best cheese for smash burgers?
   American cheese melts perfectly, but cheddar, pepper jack, or provolone also work well.
5. Can I make these on a grill?
   Smash burgers are best on a flat surface. Use a grill-safe griddle or cast iron pan for best results.

Final Thoughts
This Jalapeño-Onion Smash Burger is the perfect combo of heat, flavor, and juicy satisfaction. With a crispy patty, spicy-sweet topping, and creamy melted cheese, it’s everything you want in a burger—no drive-thru needed. Whether you’re making them for a cookout or a weeknight treat, they’re sure to be a hit with everyone at the table.

Give them a try and share your custom creations—stack it, sauce it, and smash it your way!

Preparation Time: 10 minutes
Cooking Time: 15 minutes
Cuisine: American

Nutritional Information (Per Burger):
Calories: 510 | Protein: 30g | Carbohydrates: 28g | Fat: 32g | Fiber: 2g | Sodium: 580mg

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