Combine the flour, salt and oil in a large mixing bowl. Bring the water to boil and pour it on to the flour.

Mix in quickly with a wooden spoon to make a dough. Transfer it to a floured surface and knead into smooth and soft dough. Cover and let the dough rest for 30 minutes.

In a bowl combine scallions, salt and pepper. Set aside.

Divide the dough into equal pieces and roll them into balls. Place a ball of dough on a well-floured work surface and roll out into a thin circle.

Brush the surface of pancake with sesame oil and sprinkle a tablespoon of the scallion mixture.

Roll the dough up from one end to the other. Then then curl the roll around in a spiral and pinch the end to the roll so it stays wrapped. Flatten the roll with you palm and roll the pancake to 1/8th inch thickness.

Heat a frying pan or skillet over medium-high heat and pour little oil. When oil is hot, place the pancake and cook until golden brown on both sides.

For the dipping sauce, mix all the ingredients in a bowl. Cut the pancake into wedges and serve with the dipping sauce.