01 -
Using a sharp knife or a slicer, cut onions as thin as possible and try to keep them uniform for even cooking.
02 -
Split the ground beef into four pieces, each weighing 4 ounces, then gently shape them into loose balls.
03 -
Place a large cast iron pan or griddle on medium-high heat and let it warm up really well—takes about 2 minutes.
04 -
Drizzle canola oil onto the heated pan and spread it out so it evenly coats the surface.
05 -
Pop the balls of beef onto the hot pan and firmly press down with a spatula to make very thin patties.
06 -
As soon as the patties are flattened, sprinkle them with a mix of salt, pepper, and garlic powder.
07 -
Pile about 1/2 cup of those sliced onions on top of each patty, letting some spill onto the pan.
08 -
Leave the patties alone for 2 minutes so they form a nice, dark crust at the bottom.
09 -
Carefully flip each patty, scraping up any crunchy bits, and press them back on top of the burgers.
10 -
Put the buns, cut side facing down, directly on the patties to steam for a minute.
11 -
Take the buns off and lay the cheese slices on top of the patties as they finish cooking.
12 -
Move the patties to your buns once the cheese has fully melted and the meat's cooked how you want it.
13 -
Scoop up the rest of the onions from the pan and pile them onto the burgers before serving.
14 -
Eat while everything's still warm and gooey from the cheese.
15 -
If you want, toss on some condiments, but usually, these are served plain to let the onion taste stand out.