Poof eats one of the batches of brownies in a similar way as Pac-Man. Additionally, Poof has a similar appearance to Pac-Man on the title card.
When the Anti-Fairies try to get the formula for Nana Boom Boom's brownies, it's a spoof from SpongeBob Squarepants, another Nickelodeon show, in which Plankton wants to steal the Krabby Patty Secret Formula from the Krusty Krab.
Poof burped, but in Fairly Odd Baby, it was stated that lightning happens when Poof burps but in this episode, nothing happened. On the other hand, Poof may have gotten control over his magic by this point since the magic he did in Fairly Odd Baby were way beyond his control and they occurred a lot in Fairly Odd Baby due to his reactions.
Why would Cosmo, Anti-Cosmo, and Anti-Wanda be in costumes if they can shape shift?
When Poof was about to turn his head 360 degrees. The plate had randomly disappeared.
On the title card, part of Poof's outfit is the same color as his skin.
Someone will say "MORE, GOOD, MORE!" in Nana Boom Boom's voice after eating Nana Boom Boom's brownies.
Someone throwing exploding pies at someone else.
Someone saying they got something from the back of a comic book.
Nana Boom Boom saying "Boom BOOM!" whenever she is about to poof up in somewhere.