1. FOR THE PANCAKES: Using wooden spoon, mix flour
and boiling water in bowl to form rough dough. When cool, transfer dough
to lightly floured surface and knead until it forms ball that is tacky
but no longer sticky, about 4 minutes (dough will not be perfectly
smooth). Cover loosely with plastic wrap and let rest for 30 minutes.
2. Roll dough into 12-inch-long log on lightly
floured surface and cut into 12 equal pieces. Turn each piece cut side
up and pat into rough 3-inch disk. Brush 1 side of 6 disks with sesame
oil; top each oiled side with unoiled disk and press lightly to form 6
pairs. Roll disks into 7-inch rounds, lightly flouring work surface as
needed.
3. Heat vegetable oil in 12-inch nonstick skillet
over medium heat until shimmering. Using paper towels, carefully wipe
out oil. Place pancake in skillet and cook without moving it until air
pockets begin to form between layers and underside is dry, 40 to 60
seconds. Flip pancake and cook until few light brown spots appear on
second side, 40 to 60 seconds. Transfer to plate and, when cool enough
to handle, peel apart into 2 pancakes. Stack pancakes moist side up and
cover loosely with plastic. Repeat with remaining pancakes. Cover
pancakes tightly and keep warm. Wipe out skillet with paper towel.
(Pancakes can be wrapped tightly in plastic wrap, then aluminum foil,
and refrigerated for up to 3 days or frozen for up to 2 months. Thaw
wrapped pancakes at room temperature. Unwrap and place on plate. Invert
second plate over pancakes and microwave until warm and soft, 60 to 90
seconds.)
4. FOR THE STIR-FRY: Microwave 1 cup water and
mushrooms in covered bowl until steaming, about 1 minute. Let sit until
softened, about 5 minutes. Drain mushrooms through fine-mesh strainer
and reserve 1/3 cup liquid. Discard mushroom stems and slice caps thin.
5. Combine 2 tablespoons soy sauce, 1 tablespoon
sherry, sugar, ginger, and pepper in large bowl. Add pork and toss to
combine. Whisk together reserved mushroom liquid, remaining 2
tablespoons soy sauce, remaining 1 tablespoon sherry, and cornstarch;
set aside.
6. Heat 2 teaspoons oil in now-empty skillet over
medium-high heat until shimmering. Add eggs and scramble quickly until
set but not dry, about 15 seconds. Transfer to bowl and break eggs into
1/4- to 1/2-inch pieces with fork. Return now-empty skillet to
medium-high heat and heat 1 tablespoon oil until shimmering. Add
scallion whites and cook, stirring frequently, until well browned, 1 to 1
1/2 minutes. Add pork mixture. Spread into even layer and cook without
moving it until well browned on 1 side, 1 to 2 minutes. Stir and
continue to cook, stirring frequently, until all pork is opaque, 1 to 2
minutes longer. Transfer to bowl with eggs.
7. Return now-empty skillet to medium-high heat and
heat remaining 1 tablespoon oil until shimmering. Whisk mushroom liquid
mixture to recombine. Add mushrooms and bamboo shoots to skillet and
cook, stirring frequently, until heated through, about 1 minute. Add
cabbage, all but 2 tablespoons scallion greens, and mushroom liquid
mixture and cook, stirring constantly, until liquid has evaporated and
cabbage is wilted but retains some crunch, 2 to 3 minutes. Add pork and
eggs and stir to combine. Transfer to platter and top with scallion
greens.
8. Spread about 1/2 teaspoon hoisin in center of each warm pancake. Spoon stir-fry over hoisin and serve.