The original recording is a semitone higher (capo 1)

Intro: C5    A5     D5  G5  C5

C5                   A5        D5             G5         C5
Banana split for my baby, a glass of plain water for me.
C5                   A5        D5                       G5 
Banana split for my baby, a glass of plain water for me.
C5              A5              F5                        G5
Dispenser man, if you please, serve my chick a mess of calories.
C5                   A5        D5             G5         C5
Banana split for my baby, a glass of plain water for me.

  G5   A5    B5 C5
 | -------------------- | 
 | ------------1------- | 
 | ------------0------- | 
 | ------------2------- | 
 | ------0---2-3------- | 
 | --3----------------- |  Flip back the lid scoop everthing in sight...

This structure continues with some variation

Enjoy!