From this morning's BookBub email:
Einkorn is an ancient wheat. The author says his daughter was gluten sensitive and by using Einkorn, she could eat it without any wheat-related problems.
Use the "Look Inside" feature and scroll down to see some recipes.
I am a US Prime member and the price you see may vary.
Edited to add one more, slightly more expensive than the usual sale-price:
Use the "Look Inside" feature to see the list of recipes (who knew there was more than one kind of pie crust recipe? ).