Bread-Bakers v098.n029.5

I am certainly not a biblical scholar.  But with the passover season upon us,
I am curious about breadmaking if and as described in the Bible.  Is
breadmaking described in it?  The passover story certainly says that the bread
before the Exodus was unleavened.  How was it normally leavened?  How was
flour made? And many more questions.

Bible references would be appreciated.

William Buchman