Get ready to flip your own fast-food fantasy! You only need a handful of everyday ingredients and a hot griddle to smash, sizzle, and stack your very own double smash burgers. Load ’em up with all your favorite fixings and watch everyone fall in love at first bite.
Prep all your burger toppings so that they are ready as soon as the patties go on the griddle. Open all the buns. Unwrap the slices of cheese and lay them out so they are quick to grab.
Use a knife to divide the ground beef into 8 equally portioned chunks. You can round out the edges of each chunk if you like, but it is not necessary.
Preheat the griddle, or a large cast-iron skillet, to medium-high heat.
Once the griddle is piping hot, place the open buns on the griddle and toast them for 1 minute. Then remove the buns and layer the lettuce, tomato, and onion on the bottom bun, and the ketchup, mustard, and pickles on the top buns. *Or save the pickles for the end if you like to add them straight to the hot patties.
With the griddle piping hot, place 4 chunks of beef on the griddle. Use an extra large metal spatula (or a grill press) to quickly press the patties out until they are paper-thin and wider than the hamburger buns by about 1 inch. Then sprinkle them generously with salt, pepper, and onion powder.
If you have room on your griddle, immediately repeat with the remaining 4 chunks of beef. Press and season.
After approximately 2 minutes, use a large thin metal spatula to scrape the first batch of smash burger patties off the griddle and flip. If the first one doesn't loosen easily, give the patties another minute. Once the patties are flipped, lay a piece of American cheese on the top of each, so that it melts as the patties continue to cook. (They should cook 4-5 minutes total.)
Next flip and add cheese to the second batch of patties.
Once the first batch of patties has cooked an additional 2 minutes on the flipside, stack one patty on top of a second patty and place two patties on each bun.
Then stack the remaining six patties in twos and place them on the remaining three buns. (To clarify, each bun should have 2 stacked patties.) Serve immediately.