On the stove:

1.  Take your frozen burger patties and separate them, peeling off any butcher paper in between.
2. Put a frying pan or a cast-iron skillet on the stove at medium-high heat and add a bit of oil.
3. When the pan is hot, put in the frozen patties and season the upper side with the salt.
4. When you start to see the juices come out of the top of the burgers and they are no longer stuck to the pan, give them a flip.
5. Season the other side with salt and let it cook for another couple of minutes.
6. When there is about a minute left to cook the perfect juicy burger, add a slice of cheese and cover the pan with aluminum foil. The cheese will begin to melt perfectly.
7. Let the burgers rest on a plate for a few minutes and enjoy.

On a grill plate:

1. Preheat your stove to 350° F, with the grill inside. The grill needs to be really hot.
2. Brush some oil on the grill grate, then place the patties over direct heat without moving them around, and season them with salt.
3. When the burgers start to show signs of the juices and blood coming through the top, flip them and add salt to the other side. Avoid the urge to press them down: this will let out all of the fat and juices, leaving you with dry burgers.
4. Cook them for another 3-4 minutes and add your cheese slices.
5. If you have a meat thermometer, check to see if they are ready. The safe minimum internal temperature is 160°F degrees.
6. Remove the burgers from the grill and let them rest on a plate for a few minutes.
7. Enjoy.