Do you need one cake mix for each half of cake? and how many would the cake serve? THANKS
If you are talking about the Wilton ball pan, I believe the instructions say it takes 4.5 cups of batter for both halves, so I use one cake mix. And for servings, about 10.
I use one (doctored) cake mix for the ball pan - half the batter in each half of the pan. Never had an issue with that.