Yoshi Cookie
A Yoshi Cookie is a cookie that first appeared in Yoshi's Cookie. It is a Yoshi's favorite snack.
Tayce T. can make this treat Paper Mario if Mario gives her a Melon and some Cake Mix. It restores 15 HP and 15 FP. The yellow Yoshi in Yoshi's Village has a melon if you bring him any food made with Cake Mix.
In Mario & Luigi: Partners In Time in the level Yoshi's Island, Kamek is getting cookies for Baby Bowser. When Kamek gives them to him, Baby Bowser eats too fast, and he feels sick.
Luigi takes four Yoshi Cookies that Kamek dropped. He gives one to Baby Luigi immediately. Later, he gives two cookies to Baby Mario and Baby Luigi to calm them down after a crash landing in Yoob's Belly. The remaining cookie Luigi gives Baby Luigi at the very end in exchange for Baby Luigi's Hammer.
A battle course in Mario Kart: Super Circuit is named Cookie Land.