The optimum meat-to-fat ratio for a Smash burger is 80/20, which means that the ground beef should contain about 80% lean meat and 20% fat. The fat ratio is important as it directly affects the taste, texture and juiciness of the burger. If you use only lean meat, the Smash burger will be dry.
Start by seasoning the minced beef. A good burger patty only needs salt and pepper. Lot of them.
Leave the burger mix on the table for to season.
Slice in the onion, cheese and pickles. Prepare the buns on a baking sheet, cut side up. Heat under grill racks quickly to make them crispy.
Choose a large frying pan. Pour oil over the surface and start to heat briskly. Roll the mince dough into four balls.
Place the meat ball in the pan. Using a wide frying spatula, press the ball flat against the surface of the pan. Then press the onion rings onto the surface of the burger. You should also press the Smash Burger couple of times while it is cooking. It tends to rise. Do the same for the other burger patties.
After a few minutes, flip the onion side down. This way the onion will cook into the burger. Press again and top with cheese slices to melt.
Once the cheese has slightly melted, pile on the Smash Burgers and enjoy immediately with big mug of IPA beer.