Step 1

Weight out loosely packed balls of ground beef to 1.5oz each. season with salt and place on a baking sheet uncovered in the fridge.

Step 2

Thinly slice onions and place in a pan over medium heat with butter and oil. Let cook until brown and translucent; about 15 minutes; Cook before serving burgers, or place in an oven at the lowest temperature to keep them warm until ready to use.

Step 3

Heat up a griddle on a stovetop or grill on high heat until smoke is coming off. Place 2-4 burgers at a time, smashing with a metal unslotted spatula, carefully sliding the spatula off so that the burger stays pressed to the griddle.

Step 4

Let cook for about 2-3 minutes then firmly scape the patty and flip and add 2 quartered slices of cheese per patty.

Step 5

Once the cheese is nice and melted you're ready to remove from the griddle. Stack once patty on top of another to double up, then place on your slider bun. repeat until all sliders are done.

Step 6

Top with grilled onions and any of your favorite burger toppings and enjoy!