Temporarily, the Shamrock Shake is back on the McDonald's menu. The 53rd Shamrock Shake season got underway on Monday.
around the country, while supplies last, according to the Golden Arches. The McDonald's secret mint flavoring is combined
with vanilla soft serve to create the green shake, which is then topped with whip cream.
History of the Shamrock Shake begins in the late 1960s. Hal Rosen, a Connecticut-based McDonald's owner and operator,
first invented it in 1967 when he combined mint milkshakes for St. Patrick's Day celebrations.
It made its debut in 1970 in a few places around the United States and, in the words of McDonald's, was "an instant success."
Shake sales aided towards the creation of the first Ronald McDonald House in Philadelphia, Pennsylvania, in 1974.
While the 3-year-old daughter of Philadelphia Eagles football player Fred Hill was receiving leukemia treatment at a nearby children's hospital,