Handful of Crumbs (found "Sesame Street" short; 1982)
From The Lost Media Wiki
Cover for "C is for Cookie," one of three albums featuring this song.
Status: Lost
"Handful of Crumbs" was a Sesame Street song and short that first aired sometime in Season 14. It featured Cookie Monster singing how sad he is over the fact that his cookie broke into crumbs after holding it too tight, all while being backed by a country band consisting of generic muppet monsters, including one who would eventually become Elmo (performed by Jerry Nelson).
While the song itself has been released on three different Sesame Street compilation albums, the short has not resurfaced on the internet in any way and has not aired again since the 1980s.