On my medieval food research, I have found an article which talks about almond milk and almond oil with cookbooks that date back to 10th century Baghdad. This coupled with how Almonds entered China in the Tang makes me wonder if any would have consumed it since almonds never gained popularity in China.
Here's a good article on almond milk's Arabic history: https://www.middleeastvegansociety.org/blog/the-historical-and-culinary-journey-of-almond-milk-and-oil-in-medieval-arab-cuisine#:~:text=Egyptian%20cookbooks%20from%20the%2014th,in%20about%20a%20dozen%20recipes.&text=Sweet%20and%20bitter%20almond%20oils,both%20Greek%20and%20Islamic%20medicine.
