The My Little Pony comic book series is spun off from My Little Pony: Friendship is Magic, written in the form of story arks.
Friendship is Magic #41(Derpy Hooves)
Derpy pigs out on a box of muffins.
Friendship is Magic #59(Rainbow Dash)
Rainbow Dash samples many pies for Pinkie Pie.
Friends Forever #12(Pinkie Pie, Twilight Sparkle and Spike)
Twilight Sparkle tries to help Pinkie Pie resist PheNOMNOMenons at a street fair. Spike gets hooked on them in the end.
Legends of Magic #2(Rockhoof)
Rockhoof takes a break from training to party and eat with his friends, making him too out of shape to investigate the volcano when it acts up.