Jalapeño-Onion Smash Burgers

This Jalapeño-Onion Smash Burgers recipe brings big flavor with simple steps. Thin, crispy-edged patties meet sweet cooked onion and a hit of fresh jalapeño, for a burger that is spicy and satisfying. It is a crowd-pleaser for weeknights and for barbecue nights, because it cooks fast and tastes like you worked longer on it. You will love the crisp edges, the juicy center, and the kick from the jalapeño. Go on, grab the pan, and get ready to make a messy, tasty burger everyone will ask for again.

How to prepare Jalapeño-Onion Smash Burgers

  1. Slice one large onion thin, and chop one or two jalapeños small, remove seeds if you want less heat.
  2. Heat a skillet or griddle over medium high heat, add a little oil, then cook the onions until soft and light brown, 8 to 10 minutes. Add the chopped jalapeño near the end, cook 1 to 2 minutes, then set aside.
  3. Divide 1 pound of ground beef into 4 even balls, about 4 ounces each. Do not overwork the meat, keep it loose. Season each ball with salt and pepper.
  4. Heat the pan very hot, add a small splash of oil. Put the beef balls on the hot surface, then press each ball flat with a heavy spatula or press, until very thin. Cook without moving for 2 minutes, until the edges brown and crisp.
  5. Flip the patties, add a slice of cheese if you like, and cook 30 to 60 seconds more for medium. Remove patties.
  6. Toast burger buns in the same pan for 15 to 30 seconds until golden.
  7. Build the burger, place the patty on the bun, top with the jalapeño-onion mix, add sauce or mayo, and finish with lettuce or pickles if you want. Serve right away so the edges stay crisp.

Jalapeño-Onion Smash Burgers

Why You’ll Love Jalapeño-Onion Smash Burgers

  • Fast cooking, great for busy nights.
  • Thin, crispy edges with a juicy middle, classic smash burger texture.
  • Sweet onion and fresh jalapeño give a nice balance of flavor, spicy and sweet.
  • Simple ingredients, big result, great for feeding a group.

Tips for success

  • Use a hot pan, that heat gives the best crust.
  • Keep the beef loose when you form balls, do not press or pack before cooking.
  • Press the patties thin and quick, then do not move them until it’s time to flip.
  • Remove jalapeño seeds to cut heat, or leave them for more spice.
  • Toast buns in the pan after cooking the patties so they soak up flavor.

Serving Suggestions

  • Serve with fries or a simple green salad.
  • Add sliced pickles or crispy onions for extra crunch.
  • Offer creamy coleslaw on the side to cool the spice.
  • Try cheddar or pepper jack cheese for more sharp or spicy notes.

Jalapeño-Onion Smash Burgers

FAQs

Q: How spicy will these burgers be?

A: Heat level depends on the jalapeños you use, and if you keep the seeds. Use one jalapeño for mild heat, two for more kick.

Q: Can I make these ahead?

A: The patties are best fresh for the crisp edges. You can cook onions and jalapeños ahead, and toast buns just before serving.

Q: What beef is best for smash burgers?

A: Use ground beef with some fat, like 80/20, it gives the juiciness and flavor you want when smashed thin.

Q: Can I make these in a grill press?

A: Yes, a grill press works well to press the patties thin and get even contact with the heat.

Conclusion

For a clear, tested take on this flavor combo, see the recipe guide at Jalapeño-Onion Smash Burgers – Food & Wine, it has extra tips and photos to help you make them at home.

Jalapeño-Onion Smash Burger served on a plate with toppings

Jalapeño-Onion Smash Burgers

These Jalapeño-Onion Smash Burgers are quick to prepare, featuring crispy-edged patties topped with sweet onions and fresh jalapeños for a spicy, juicy delight.
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 4 servings
Course: Dinner, lunch, Main Course
Cuisine: American
Calories: 450

Ingredients
  

For the Burgers
  • 1 large onion, thinly sliced
  • 1-2 pieces jalapeños, chopped remove seeds for less heat
  • 1 pound ground beef divided into 4 balls (about 4 oz each)
  • to taste salt and pepper for seasoning
  • cheese slices (optional) slices of cheese like cheddar or pepper jack
  • 4 pieces burger buns toasted

Method
 

Preparation
  1. Slice one large onion thin, and chop one or two jalapeños small, removing seeds if you want less heat.
  2. Heat a skillet or griddle over medium high heat, add a little oil, and cook the onions until soft and light brown, about 8 to 10 minutes.
  3. Add the chopped jalapeño near the end and cook for 1 to 2 minutes, then set aside.
  4. Divide the ground beef into 4 even balls, about 4 ounces each. Do not overwork the meat; keep it loose. Season each ball with salt and pepper.
Cooking
  1. Heat the pan very hot, add a small splash of oil. Place the beef balls on the hot surface, then press each ball flat with a heavy spatula until very thin.
  2. Cook without moving for 2 minutes, until the edges brown and crisp.
  3. Flip the patties, add a slice of cheese if desired, and cook for 30 to 60 seconds more for medium doneness.
  4. Remove the patties from the pan.
  5. Toast the burger buns in the same pan for 15 to 30 seconds until golden.
Assembly
  1. Place the patty on the bun, top with the jalapeño-onion mix, add sauce or mayo, and finish with lettuce or pickles if desired.
  2. Serve right away so the edges stay crisp.

Notes

Use a hot pan for the best crust. Keep the beef loose when forming balls, press quickly and do not move patties until it's time to flip. Toast buns in the pan after cooking the patties to soak up flavor.

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