I just had to tell you all of a sad but true memory this evokes.
In my student teaching days (1974) I brought home a phamplet with those
same or similar recipes. However, one recipe was a recipe for asbestos
This is for real. In a classroom teachers craft recipe book.
The main ingredient was asbestos powder.
They said in the article if you had trouble find a source for it that it
was used for patching flues or something.
When I recently saw a class action suit being filed on asbestos I sent
the organization a Xexox of the page and the title page, etc. UNREAL!