I've seen a baking core for sale at Michaels, but I don't know if it's the same size.
I have this pan too, and I have baked it without the core, but it's tricky. It takes more batter (I don't know exactly how much), and definitely a longer time to bake it. I tried it to see if it was more sturdy as solid cake. Honestly, I can't really remember, it was so many years ago. I know that it did work, but I wasn't in a hurry to do it again.
Do you have time to bake a practice one?
Good luck!
id you have a rose nail flip it up side down in the pan and i herd that helps i havent tried it but that what i know?
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