"The Best Burgers From Each of the 50 States: Eastside Big Tom, Washington - Takeout windows on two sides accommodate the dual lines of cars waiting for their double cheeseburgers. The key to Big Tom’s success is a proprietary sauce called ‘goop,' made from what seems to be mayo, sour cream, and yellow mustard. Whatever the hell goop is, it’s undeniably addicting."
on Cheeseburger