The sandwich, which is re-launching on April 21, contains slabs of bacon, two slices of melted cheese and the Colonel's "Secret Sauce."
The whole thing is contained by two pieces of fried chicken, instead of a bun.
The Double Down debuted for a limited time in 2010 and immediately became a target for late-night comedy.
"This is deep-fried madness," Colbert Report host Stephen Colbert said of the sandwich when it launched. "This is breaded insanity. It is a sandwich that lacks all sandwich-ness. It's like an edible Hieronymus Bosch painting wrapped in a paper straitjacket. If a sandwich has no buns, can it truly be called a sandwich?"
The recipe from 2010 had 540 calories and 32 grams of fat, according to The Consumerist.
The Internet seems to be pretty psyched that the sandwich is making a comeback.
YESSSSSSS RT @Gothamist: KFC Is Resurrecting The Double Down http://t.co/TADLK7Ntq8 pic.twitter.com/utCpsZj5ol
- Herman Krasnoff (@BellyDeKraz) April 16, 2014
America always prevails. RT @USATODAY: KFC is bringing back the Double Down http://t.co/V9lPCG8fJm pic.twitter.com/DZlWnA1wDf
- John (@Manute_Troll) April 16, 2014
VICTORY!!!! RT @USATODAY: KFC is bringing back the Double Down http://t.co/PGMpREv8OX pic.twitter.com/1Q5jNPv099
- Jason Patt (@Bulls_Jay) April 16, 2014
who is dining w/ me at KFC on April 21? "@USATODAY: KFC is bringing back the Double Down http://t.co/jKmqhIbASb pic.twitter.com/5OsD35GwsS"
- LiZ KHALiFA (@getlowder) April 16, 2014
THE DOUBLE DOWN IS COMING BACK TO KFC! http://t.co/9nSClur1lW Time for the Jacqui special, Dub-Down dipped in mashed potatoes w/ gravy.
- Jacqui Collins (@jacquicollins_) April 16, 2014
I believe in god again! @kfc is bringing back the Double Down.
- adrien (@adrien) April 16, 2014
A glorious day indeed. RT @USATODAY: KFC is bringing back the Double Down http://t.co/1BnoETVIdS pic.twitter.com/SVWGCrF9Su
- Graham Rapier (@g_rapier) April 16, 2014