"Fermented sauerkraut" is a phrase that describes a type of cabbage that is preserved with the help of bacteria. The cabbage goes through a process called fermentation, which gives it a tangy flavor and helps make it last longer. Full definition
I've learned to do my own fermented sauerkraut and sour cream but I really do need a fabulous resource like this to try my hand at many other recipes. (beyondthepeel.net)
Here is a recipe, or you can buy raw, fermented sauerkraut here. (homemademommy.net)
Raw naturally fermented sauerkraut contains lactic acid and the living probiotic microorganisms that are the agents of fermentation. (healthimpactnews.com)