In 1948, Harry Snyder and his new wife, Esther Johnson, opened the first In-N-Out Burger in Baldwin Park, California. Synder and his wife had two children, who in turn had children of their own, which is how the chain still runs in the family today. Snyder was a stickler for fresh, high-quality ingredients, often selecting products from local markets himself before cooking them into entrees.
The Big Arch is indeed a beefy, cheesy, saucy burger. Its ingredients are a little different from a Big Mac or a Quarter Pounder, but it's recognizable as a McDonald's product. It has two quarter-pound beef patties, three slices of white cheddar, both sliced and crispy onions, lettuce, pickles and a new Big Arch Sauce, made with mustard.