Mix all of the dry ingredients together in a separate bowl for McDonald's burger seasoning.
Add the meat to a large bowl and lightly blend. Weigh the meat mixture into exactly four 4-ounce patties for a quarter pound McDonald’s patty.
Place the burgers on a sheet pan in between two pieces of parchment paper and place in the freezer for 1 1/2 hours.
When ready to cook, remove the onions from the water and drain thoroughly.
Heat a large, nonstick griddle to high. Remove the burgers from the freezer exactly 2 minutes before you are ready to cook them.
Place the bun on a clean part of the flat top and toast until warm.
Place the patties on the griddle, season heavily with the seasonings and let them sit for 30 seconds. Using a spatula, press down heavily on the patty for roughly 6 seconds. Flip the burger and repeat, remembering to season heavily.
When buns are warm, remove to work station. On the crown of each bun, place 5 nickel-sized dollops of ketchup, four in each corner and one in the center. In the empty spaces, place five smaller dots of mustard.
Divide the onions between the buns placing them on the ketchup and mustard.
Place a slice of cheese on each bottom bun then the cooked patty on top of the cheese.
Add another slice of cheese to each hamburger patty and place 2-3 pickles chips on top of the cheese.
Assemble the top and bottom portions of the hamburger and serve.