Divide the ground beef into eight equal portions and roll into balls.
Place the eight balls on a baking sheet and chill in the refrigerator for at least 30 minutes.
Preheat your griddle or skillet over med-high heat.
Once your cooking surface is hot, take one ball and place it on the surface. Then, using a smashing tool, firmly press the meat out into about 1/4 to 1/2 inch thickness.
Sprinkle salt, pepper and garlic powder generously over the patty.
Repeat with each of the remaining balls.
Allow to cook until you see that most of the pink has turned brown, then flip and cook for another 1-2 minutes. Add cheese and cook for one minute more.
Remove burgers from the griddle and set aside.
Turn heat to low. After the surface has cooled a bit, add ½ tbsp butter and spread it around.
Toast the inside of each bun in the butter, moving it around the surface, to desired doneness.
Assemble Smash Burgers on the buns and top with your favorite toppings.