Mix strong flour, weak flour, and hot water in a bowl using chopsticks or a spoon. Knead the dough by hand until smooth. Cover with plastic wrap and let rest for 30 minutes to 1 hour.

Cut the scallions into small pieces and mix them with a pinch of salt in a separate bowl.

Divide the dough into 4 equal portions. Roll each portion thinly, spread 1/4 tsp salad oil, and sprinkle 1/4 of the scallion mixture evenly. Roll the dough tightly and press to flatten. Coil into a spiral and tuck the end inside. Repeat for all portions.

Flatten each spiral with a rolling pin to create thin pancakes.