After Jenner, 18, posted a clip on social media, promoting Cooking With Kylie, Blac Chyna took to her own Instagram account to drop hints that she had worked on a similar project before her.
"B---- Bye," the model, who recently started dating Rob Kardashian, captioned the since deleted pic. "Follow @cookingwithchyna #InfatuatedWitChy."
Blac Chyna's Instagram dedicated to cooking has been active since December 2015.
The mother of one then took to Snapchat, sharing a video in which she asks fans, "I'm trying to figure out what else can I create so other people can imitate. Any suggestions?"
Although the model declined to say names in her post, it's no secret that there's bad blood between her and Jenner, as the Keeping Up With the Kardashian star is currently dating 26-year-old Tyga, Blac Chyna's ex-fiancé and father of her 3-year-old son, King.
Sources told PEOPLE in January that Jenner was "livid" and felt "betrayed" when she found out her brother was dating her boyfriend's ex.
Warning: Explicit Language
Meanwhile Tyga seemingly stood up for his girlfriend in a series of videos obtained by The Shade Room.
"Look, 2016, motherf---ers gotta stop acting like they invented every mother---ing thing out here," he said in one clip, before continuing in another, "Everything's already been done. Everything that you're doing. Everything that this person is doing, or the next person, somebody already did it!"