“I actually have a lot of jokes about potatoes, I just don’t know where to starch”

Potatoes contain starch. “I would tell a joke about potatoes, but i don’t know where to starch!”—a pun on “where to start”— was posted on Twitter by PUNS on October 30, 2012. “I actually have a lot of jokes about potatoes, I just don’t know were (sic) to starch” was posted on Twitter by jolly dad jokes on November 18, 2017, and again on Twitter on December 7, 2017.
 
The one-line saying has been printed on several images.
 
     
Twitter   
PUNS‏
@omgthatspunny
I would tell a joke about potatoes, but i don’t know where to starch!
9:21 AM - 30 Oct 2012
 
Twitter
FaeezFezAhmad‏
@faeezfez
hihi youre punny “@omgthatspunny: I would tell a joke about potatoes, but i don’t know where to starch!”
9:23 AM - 30 Oct 2012
 
Twitter 
Gabriel Avila Perez‏
@GabrielAvilaPe3
Replying to @Riftyish
wait I have a lot puns about potatos I just don’t know were to starch
1:07 PM - 30 Sep 2017
 
Twitter
jolly dad jokes‏
@dadtellsjokes
I actually have a lot of jokes about potatoes, I just don’t know were to starch
1:15 PM - 18 Nov 2017
 
Twitter
Sammy ‘TheLion’ Duke‏
@iSammyDuke
I actually have a lot of jokes about potatoes, I just don’t know were to starch.
Should I just….mash them together? 😏
2:11 PM - 18 Nov 2017
 
Twitter
jolly dad jokes‏
@dadtellsjokes
I actually have a lot of jokes about potatoes, I just don’t know were to starch
7:15 PM - 7 Dec 2017