 The restaurant was renamed "McDonald's Bar-B-Que" and had 25 menu items, mostly barbecue.In October 1948, after the McDonald brothers realized that most of their profits came from selling hamburgers, they closed down their successful carhop drive-in to establish a streamlined system with a simple menu which consisted of only hamburgers, cheeseburgers, potato chips, coffee, soft drinks, and apple pie.After the first year, potato chips and pie were swapped out for french fries and milkshakes.