"Is it possible it was meant to? Was there a photograph which showed a non-sunken cake? I ask because I have a recipe for a prune and Armagnac cake which is flourless and intended to be damp and 'puddingy' rather than light and spongy. Just a thought!" - flashria on "fallen" prune cake
"Take a long knife and start at the tip end—just sweep along the curve of the bone and when you get to the knotty end just curve around the spinal bit and out. No matter if you leave a bit of meat on the bone, that's all the more to gnaw on." - BobB on removing chine bones (a.k.a. backbone)