I’ve tried a close relative, the stinkhorn (aptly named phallus impudicus). While in the egg phase, the slimy outer layer can be peeled off. Then you cut the inside into thin wedges, and fry them in oil. They taste like earthier french fries. The stuff in the post I’ve only ever encountered in the mature stage, so I never got to try this recipe with them. Since they are very similar in most aspects, I’d guess the technique should work.