To make the homemade big mac sauce recipe mix the ingredients together.
From the bottom up your big mac should be assembled as follows:
the bottom bun
a tablespoon or so of special sauce
a few diced onions
sliced lettuce
a slice of cheddar cheese
one burger patty
the middle bun
a tablespoon or so of special sauce
a few diced onions
2 or 3 pickles
sliced lettuce
one burger patty
the top bun