How to make it
Divide beef into 4 equal portions. Flatten each portion into a patty that is the size of the burger bun and indent the center with your finger. Season the patties with salt and pepper to taste.
Heat a cast-iron skillet over medium high heat. Place patties seasoned side down in pan and season the other side. Cook 2 minutes and flip.
Put 1 slice of cheese on each patty immediately. Continue to cook for 2 minutes, then move patties onto a plate to cool.
Toast buns in the same skillet, cut side down then arrange buns on plates.
On the bottom half of each bun, spread Lee Kum Kee Sriracha Mayo. Add 2 burger patties to each burger. Then add bacon and kimchi. Put more Lee Kum Kee Sriracha Mayo on the cut side of the top bun.