I think that “einkorn” is what we call “speltti” and if so, it indeed does make a good bread. I’ve also tried einkorn/speltti beer, which also had a unique and enjoyable flavour.

The texture of sour rye bread and and einkorn/speltti bread is very similar, but the sourness is what makes the rye really stand out.

I recommend trying it when the bread is warm so that the butter partially melts on it, with thin slices of salted salmon or good cheese. It is mindblowingly good.