a lot of it is in the description - a professor of mine in college once passed out a questinairre asking if anyone would be willing to attempt eating:

heat coagulated paste of grass seed,sometimes mixed with various reproductive cells,and bodily fluids, plus the dehydrated sap of various crushed plants - prior to the application of heat, first mixed into an elastic solid and then fermented until a buildup of gases caused the solid to become a mass riddled with small gas pockets - often sliced and further treated with heat until protein and other chemical breakdown caused a colour change to the surface