“What did the pancake say to the baseball player?”/“Batter up!”

A baseball riddle is:
 
Q: What did the pancake say to the baseball player?
A: “Batter up!”
   
The riddle has been cited in print since at least 1997.
   
“How is a baseball team like a pancake?”/“They both need a good batter,” “What do the New York Yankees and pancakes have in common?”/“They both need a good batter!” and “Why do pancakes always win at baseball?”/“They have the best batter” are other baseball and pancake riddles.
     
     
25 July 1997, The News Journal (Wilmington, DE), “Just for Laughs,” pg. 24, col. 5:
Q: What did the pancake say to the baseball player?
A: Batter up.
Rob Paulte, age 10
Newark
 
23 July 2000, Aberdeen (SD) Daily News, Farm Forum, pg. 39F, col. 5:
“What did the pancake say to the baseball player?”
“Batter-up!”
 
Twitter
Psychology 200
‏@psy200tweets
What did the pancake say to the baseball player? Batter up! #fb
1:01 PM - 15 Feb 2010
 
Twitter
Libby
‏@lliibbbyy
What did the pancake say to the baseball player?
Batter up! 😂😂😂
6:37 PM - 8 Mar 2013
 
Humoropedia
102 Funny Laffy Taffy Jokes
BY · PUBLISHED NOVEMBER 27, 2014 · UPDATED NOVEMBER 20, 2015
(...)
68. WHAT DID THE PANCAKE SAY TO THE BASEBALL PLAYER? BATTER UP!
 
Google Groups: Safe Passage Initiative
What did the pancake say to the baseball player?
Frankfort Avenue Business Association
11/3/16
Batter up!