I'm hoping you can rescue us again. My daughter (needed Northern French recipes last time) is now working on a biology project where they need to make a food which uses a bacteria or fungus to produce something else. Namely mushrooms wouldn't do but pickled mushrooms (not using vinegar) would work. So, other than sourdough bread which too many others are doing, can you think of something not too difficult for a 15 year old which uses bacteria or fungus. We've thought of pickles or something else pickled using a brine or an Indian dosa but haven't found a good recipe for that.
Since these can take a long time to develop the teacher hasn't given them a turn in deadline but she needs to know by Monday what she is going to do and what the bacteria or fungus used is.
Ideas and recipes (please?) would be greatly appreciated.
Thank you thank you