This actually reminds me of a murder case back in the 1930’s. The killer had disposed of the body by draining the blood, boiling down the meat with lye and soap-production chemicals and using the blood to make tea cakes. I didn’t know about the consistency thing, so that makes a lot more sense.
That would be Leonarda Cianciulli.
Cianciulli used the remains of the bodies she killed to make soaps that she would later bathe with. In addition to soap, she used dried blood from the victims in her tea cakes that she would serve to friends when they would visit. She also claimed she enjoyed eating them.
Source: Ultra Facts