This recipe is a remake of a remake. It was originally written as Extra-Flaky Scallion Pancakes by Kenji Lopez-Alt for Serious Eats.
A sourdough component was added by Melissa Johnson at Breadtopia: Scallion Pancakes with Sourdough Discard.
My alteration was to use wild ramps in place of scallions. The key to the flakiness is to laminate the dough with repeated schmears of toasted sesame oil, rolling and pressing the dough multiple times before adding the ramps.
The result is exceptional.