RE: Special Sauce
Big "H" sauce was introduced in the late 70's by Hellman's.
It was an attempt to offer a sauce as close as possible to the sauce on a Big Mac
so you could duplicate that classic sandwich at home.
It came in a wide mouth pint bottle and while it tasted very similar to Mac sauce
it never really caught on and was dropped a couple of years afterwards.
I bought a bottle or two and while it was ok what was missing for the true Mac lover
or Big Boy triple-decker burger aficionado was the three piece sesame seed bun.