What the heck has happened to my chocolate cake all of a sudden. I have been using the following recipe:
2 DH chocolate cake mix
4 TBL unsweetened cocoa powder
2-2/3 c. buttermilk
1 cup vegetable oil
6 eggs
2 tsp. vanilla extract
For some reason the middle of my cake fell!! I didn't open the oven door. There were no big bangs in my kitchen, no slamming door etc. Why did the middle of my cake fall? Any ideas? I have used this recipe a few times before and it never happened....hummmmm
Ive read that DH changed their formula and others have had the same problem. 
But they changed the DH awhile ago didn't they? This only just happened to me. I saw some other posts about this and maybe I should use a flower nail with the chocolate. It was a 9 x 13!! I thought that was only needed on bigger cakes.....grrrr if it isn't one thing, it's another 
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