The Executive Treatment is a usual Krabby Patty thought up by Mr. Krabs to boost profits. It costs double the price of a real Krabby Patty and only executives could order it. The burger only appears in the episode of the same name.
Role in episode
Patrick wants the burger, but Squidward says to him that only executives can eat it. Patrick pays twenty dollars for a tie and business glasses that Squidward had to look like a businessman and eat it, but executives take him to a meeting, thinking he was a real executive.
At the jail, SpongeBob learns that Patrick is in charge of the laundry room. As that made him an executive, he goes there to serve Patrick the Executive Treatment.
According to Squidward, The Executive Treatment is really just a Krabby Patty that costs more, and SpongeBob wears a different tie when he serves it.