Another method of mixing this cake that works better for some is simply mixing the dry ingredients and the wet in separate bowls and stirring them gently together.
One of our readers has let us know that, when making cupcakes with this recipe, 375 degrees for 17 minutes is perfect. (Thanks, Dina!)
There has been a common problem with the cake falling in the center and being undercooked. This is because it is removed too soon. Be sure that the cake is dry on the edges, and that that a knife comes out clean when inserted into the center. If you remove it too soon, even if it looks done, it will fall (all cakes will!).