The last bite of anything hits different. Not better ingredients. Not a secret chef technique. Just the strange and slightly unfair reality that your brain waits until the very end to fully show up to the party.
Scientists call it the "peak-end rule." Basically, your brain judges an entire experience by how it ends, not how it started. Which explains why you remember that one perfect final forkful more than the twelve bites that came before it. Your senses were napping and finally decided to clock in right at closing time.