Hi all. I made a bread pudding in the oven last week and baked it for an hour until it was brown and rounded on top. However, after I took it out, it did not take long for it to droop back into the pan. How can I avoid this?

I love bread pudding. I want to try and make it on my own. I would like some good recipies and details on the steps. I am new to cooking, I never really had to until now. I have a new favorite channel to watch it is the cooking channel.

I was going to use Zatarain's Jambalaya Mix since it already comes with the spices and then add in some seasoned chicken, sausage, celery, onions, and maybe shrimp. Any other tips out there for making this better?