John is a retired chef and avery serious gadget-guy - so, we have a crapton of... stuff. I used to be a bakery baker, and in some ways, I'm truly a gadget kinda gal. 'The right tool for the job', and all that. In other -bigger- ways, I'm very much all about the 'multi-purpose' tools, but these two perspectives aren't necessarily at odds. A springform pan is a great multi-tool, to me - especially in conjunction with the parchment paper. I found a springform pan that has a couple extra bottoms, that also works as a bundt and a heart-shaped pan, but pretty much any springform pan will also work as a normal cake pan, too. While still not waterproof, a good one will form a very tight seal, and (most of the time) by the time anything would begin to leak out, those edges would already have baked well
enough to seal it. In the case of this dish, that wouldn't likely work, and that is where the parchment comes in. The trick is in buttering/oiling the parchment enough to make it very flexible, before attempting to fit it to the pan.