[Sca-cooks] is arrowroot, tapioca and guar gum period

[Terry Decker]

Tapioca is cassava flour.  It's been in use in South and Central America for 
at least 6.000 years.  In the Caribbean, it is used to make bread.  The 
Spanish took over the recipe to make casabe bread and baking casabe for 
chandlers became a thriving business in the Spanish Caribbean seaports in 
the 16th Century.  As reference, try Cluster and Hernandez, The History of 
Havana, 
https://books.google.com/books?id=87vy8YzRnTgC&pg=PA5&lpg=PA5&dq=history+casabe+bread&source=bl&ots=0Ds_KmpvyW&sig=A313Tf0cee3VyuQG_7pP_JABOzQ&hl=en&sa=X&ved=0CEMQ6AEwBjgKahUKEwi6osqf28DHAhUTQpIKHcqoA0Q#v=onepage&q=history%20casabe%20bread&f=false

Arrowroot was used in period, but doesn't seem to have made it into the 
European sphere.  Guar gum is a modern product that is a substitute for 
locust bean gum.

Bear

I am trying to document if arrowroot, tapioca and guar gum were used
in period.  I am making gluten free flat bread for a competition and
am trying to document ingredient.  Sources would be greatly appreciated.

Thanks in advance,

Sindara