Make the dipping sauce: whisk together 4 tablespoons soy sauce, 3 tablespoons rice vinegar, 2 minced garlic cloves, 1 tablespoon honey, 1 teaspoon sesame oil, and a pinch of sesame seeds in a small bowl; set aside.
In a large mixing bowl, whisk the 2 cups all-purpose flour with 1 teaspoon salt.
Slowly stir in 1/2 cup hot water and mix with your hands until a shaggy dough forms, then work in 1/4 cup cool water until combined.
Turn the dough onto a floured surface and knead for about 10 minutes until smooth and no longer sticky, adding a little flour to the surface if needed; form into a smooth ball.
Place the dough back in the bowl, cover with a damp kitchen towel, and let it rest for 30 minutes.
Divide the rested dough into four equal pieces. Working with one piece at a time, roll it into a 7 to 8-inch circle on a lightly floured surface.
Brush the top of the circle lightly with vegetable oil, sprinkle with about one quarter of the 1 cup thinly sliced scallions, then fold the edges over the scallions and form into a ball; flatten slightly and roll again to a 7 to 8-inch diameter.
Place the rolled pancake on parchment or wax paper and repeat with the remaining dough pieces, separating each pancake with parchment and keeping uncooked pancakes covered with a damp cloth.
Heat about 1 to 2 tablespoons vegetable oil in a large skillet over medium-high heat. Fry each pancake until the bottom is lightly browned, about 4 minutes, flip and cook another 2 to 3 minutes until both sides are browned and cooked through; add more oil as needed.
Cut pancakes into quarters if desired and serve warm or at room temperature with the prepared dipping sauce.