Spicy Jalapeño-Onion Smash (Print Version)

# Ingredients:

→ Burger Sauce

01 - 1/4 teaspoon garlic powder
02 - 1 teaspoon Worcestershire sauce
03 - 1/4 teaspoon kosher salt
04 - 3 tablespoons mayo
05 - 1 1/2 tablespoons ketchup
06 - 1/2 teaspoon ground black pepper

→ Smash Burgers

07 - 4 hamburger buns, toasted and halved
08 - 680g of 80/20 ground beef
09 - 1 large onion, thinly sliced (about 2 cups)
10 - 4 slices of American cheese
11 - 1 jalapeño pepper, sliced thinly (about 1/2 cup)
12 - 1 teaspoon of canola oil
13 - 1 1/4 teaspoons kosher salt, used throughout
14 - 3/4 teaspoon ground pepper, used throughout

# Instructions:

01 - Stir the mayo, ketchup, Worcestershire, garlic powder, black pepper, and salt together in a small bowl. Cover it up and stick it in the fridge until you're ready to use it.
02 - Warm up a large skillet over medium heat and pour in the canola oil. Add the onion slices and jalapeños, sprinkling with a quarter of the salt and pepper. Stir and cook everything until the jalapeños soften and the onions caramelize—this takes about 10-15 minutes. Scoop it all into a bowl and set it aside.
03 - Divide the ground beef into 8 chunks (around 85g each). Gently shape each piece into a loose ball, but don't mash it too much. Lay the meatballs on a parchment-covered tray and keep them in the fridge until you're ready to cook.
04 - Clean out the pan and get it super hot over high heat—almost smoking. Put a few meatballs in the hot skillet. Without overcrowding, press each one down into a thin patty using a sturdy spatula or burger press. Sprinkle with what's left of the salt and pepper. Let the patties cook about 2-3 minutes per side and press hard early on. When there’s about a minute left, toss a slice of cheese on top to melt.
05 - Take the toasted buns and spread both sides generously with the sauce. Add one cheesy patty to each bottom bun, followed by a scoop of your onion-jalapeño mix. Top it off with the other bun half and dig in while it’s nice and hot.

# Notes:

01 - For the crispy edges you want, a cast-iron skillet works best for this job.
02 - To nail a smash burger, be sure to press firmly with a flat metal spatula right after placing the meat in the pan.