This week we nerd out on makrut lime (fruit available November-January, leaves available year-round). “As American as apple pie” is an idiom that describes something quintessentially American, like baseball or, well, apple pie. Funny thing is, neither apples nor pie originated in the United States. “As Thai as makrut lime” would be a more fitting idiom for something undeniably Thai, especially because makrut limes actually originated in Southeast Asia.