Are you thinking about the Cake Mix recipes from Fat Quarter Shop?
I believe they are up to Cake Mix 4. More coming soon.
BTW, I don't work for FQS or Moda. Just helping out.
https://www.fatquartershop.com/catal...ake+mix+recipe
Here's another link from Moda.
http://www.modabakeshop.com/2017/03/...tml#more-39940