Introduced in 1977, the Original Grand Slam first appeared on the menu at a Denny's location in Atlanta, Georgia to honor legendary baseball player and local hero Hank Aaron. While playing for the Atlanta Braves three years earlier, Aaron broke baseball superstar Babe Ruth's record of 714 career home runs. On Denny's website, the Original Grand Slam is listed as consisting of two buttermilk pancakes, two eggs, two bacon strips, and two sausage links.

Source: Mashed