The freebie is only good Tuesday, March 7, 2017, from 7 AM to 7 PM (select locations will go until 10 PM) at participating locations.
While you're not obligated, they are asking that you leave a donation of any size, which will go to the local affiliate for one of three charities: Children's Miracle Network Hospitals, The Leukemia & Lymphoma Society, or Shriners Hospitals for Children.
A short stack consists of three pancakes. IHOP anticipates serving over five million pancakes for the event.
Photo via IHOP.