It was over 3 years ago we made our cardboard solar cooker
as a prototype for a more permanent cooker as we profiled in the post:
This past spring we finally made the permanent one (above).
We adopted the plans from:
and plans included in the 1992 book,
Cooking With The Sun (Morning Sun Press)
by Beth and Dan Halacy.
(As an aside, as I was researching for this post
I noticed that Beth Halacy died earlier this year,
Dan had died some years earlier.
Many thanks to them for there contributions to the passive use of solar energy.)