Years ago when I was working on my Alpha-Omega medal for Boy Scouts, I had to bake a prosphora using Mom's recipe (which she received from Yiayia). No big deal, right? But, Western Rite, whom I love and admire deeply, don't have to worry about baking their church bread. They're able to buy their wafers online. Lucky.
If you love and admire them deeply, then why are you mocking them using a "product" that they are clearly not using??
I'm not at all mocking them, I'm mocking the single-shot, Eucharist-On-The-Go used by the Protestants. WRO have the right understanding of Communion Wafers; the linked website does not.
Question: what is the prescribed response if someone should by accident burn the prosphora and for some reason not be able to make another one?
Most, if not all, Orthodox parishes have a person, or more than one, whose job it is to bake prosphora. Very often, these are made in advance and frozen, then thawed before use. This is particularly the case in Slavic churches which use small-sized loaves. The chances of a church being "caught short" are pretty remote.
In my experience, it's usually a rotation of various people, typically women, that do it. However, in the larger parishes, they might have bakers that attend so they take up the job themselves.
When I was growing up, I attended a multi-ethnic/convert OCA parish, so it was pretty cool being an altar boy and seeing various prosphora recipes.