I need to take cupcakes to Jacob’s class tomorrow, and I know a box is going to get us 24 perfectly sized cupcakes. I need 30, but didn’t want to make 2 boxes* worth of mix and have leftovers. Thankfully I remembered about cake mix extenders from my cake decorating days. In a bowl, I’ll throw the cake mix and everything the box calls for, and then I’ll add:
1 cup flour
3/4 cup sugar
1/2 cup oil
2/3 c water
1 t baking powder
And then cook per directions on the box. Ta. Da.
There are fancier extender recipes, but this is basic and perfect for a class of kids. (For example, if I was making a cake for anyone besides a class of kindergarten kids, I’d use the one with sour cream. But then again, I’d not use a plain box mix for anyone else, either!)