1. Whisk flour and salt together in a large bowl. Gradually stir in boiling water until a dough forms. Turn dough out onto a lightly floured surface and knead until smooth, about 5 minutes. Return dough to bowl and cover with a damp towel; let stand 30 minutes.

2. On a lightly floured surface, roll out dough 1/4-inch thick. Using a 3-inch round cutter, cut out circles from dough. Working with 1 round at a time, gently brush one side of dough with sesame oil, using your fingertip or a small pastry brush; top with a second round. Using a rolling pin, roll both rounds together into a 6-inch circle. Cover with a damp towel and repeat process with remaining dough rounds.

3. Heat a medium nonstick skillet over medium heat. Add one pancake to skillet and cook, turning once, until lightly golden and dry, about 30 seconds per side. Remove from skillet and let cool slightly; separate into 2 pancakes. Repeat process with remaining pancakes. Pancakes can be made ahead and wrapped with plastic wrap; to heat, unwrap pancakes and steam in a steamer basket set in a saucepan with 1 inch simmering water until warm.