I add it to my lemon pound cake recipe and it's great. The cake is moist and has a very nice crumb. It also tastes great! I also add some lemon extract to it. This is just for the lemon though.
The chocolate didn't help my cake at all. It made it taste like cake mix (I'm a scratch baker), and it didn't seem to give it a better crumb.
So...I guess the answer to your question depends on what kind of cake and the basic recipe, even a mix. For the most part, it does help the cake.
Sorry for the crazy answer.
Michele
I just tried that this week. I used a cake mix extender recipe with pudding and it came out pretty moist.
Any liquid already used in the recipe would just be replacing the liquid you would use to make up the pudding mix.
I just sieved the pudding mix and cake mix together!
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