The gemara we are about to hit in Daf Yomi (Pesachim 37) talks quite a bit about bread made with "scalded flour" [חלוטה], either by pouring flour into boiling water or by pouring boiling water on to flour.
This is one of the many instances in which one can learn the gemara without having any clue what they are actually describing, but I prefer the interesting findings which turn up with a little research. In this case, take a look at this video; the key point starts at 1:03:
There is much more available on-line; with a little searching, you can find recipes as well as academic papers on the scalded flour phenomenon.
[And are those decorated breads at the start of the video examples of סריקי בייתוס...?]