How to spell GAUNTLETTE correctly?

"Gauntlette" is likely a misspelling of "gauntlet" or "gantlet". If referring to a part of armor, "gauntlet" is correct. If referring to a punishment or challenge, "gantlet" is correct.

• gauntlet She had to run the gauntlet of press photographers outside the courthouse.
• gauntlets The knight wore silver gauntlets adorned with rubies.

Excatally

• exact
• exacted
• exactingly
• exactly
• exacts
• executable
• exotically
• extol
• inexactly
• oxtail