Does anyone know if I can fill cakes w/jello instant pudding?
I have done this and it works fine as long as you use a dam of buttercream.
I have not used the instant kind, I have only used the Hunt's Jello Packs that you put in your child's lunch box.
When I make the instant kind, it is not as stiff. I would think that if you do use it, make a very good BC dam to keep it in the layers and refrigerate. 
It sounds good.
I've done it two different ways
a THIN layer of icing directly on top on the cake layer, a dam, then filled will pudding(this is my preferred way of doing it)
or
a dam then fill with pudding directly in contact with the cake.
I found that the latter way of doing it allowed the cake to absorb some of the moisture from the pudding reducing its' volume and allowed the cake to settle more in the middle and caused weight distribution to be mainly on the dam...causing more "bulging".
putting a thin layer of icing first allowed the pudding to maintain its' volume thereby the entire filled layer was able to distribute the weight of subsequent layers more evenly.
That has been my experience.
What do you mean when all of you say dam? And can I add banana slices to it?
I really like to do a white cake with vanilla pudding. It makes it almost like custard in the middle and the moisture soaked up by the cake makes it super yummy too! I usually do the regular recipe and then let it chill just a few minutes in the fridge so it is not too thick (makes it easier to spread) HTH
p_hernandez, using pudding will be fine it's stiffer than using ganache and I use that alot it works. Anyway, I checked out your photos and was very impressed by your baby belly cake how did you make it?
what? I don't have any cakes posted here yet I need to buy a digital camera to download them???
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