I haven’t done it in years, but trick to making your own BIG MAC sauce is by rehydrating dried minced onions. The kind you buy in the spice aisle at your supermarket. Once you’ve rehydrated the onions, you can mix them with thousand island or a ketchup/mayonaise mixture.
There is nothing else special about a Big Mac. It uses the same meat patties they put on their hamburgers and cheese burgers, except that they add lettuce too.
Run with it Don. Everyone consumes them. While gas is a necessity a Big Mac is for ones eating pleasure and they’ve taken it away.
Order a McDouble and have them put big mac sauce and lettuce on it. No charge.
A big mac without the extra bun.