Take flour in a bowl .Add little bit of salt and mix well with a fork.
Pour boiling water over the flour Stir flour with a fork till it makes several small lumps .Cover the bowl and leave till it cools.
When its normal or cool enough to touch ,make a smooth ,soft and supple dough.
Mix 1 tbsp of oil to the dough ,make sure the dough is really smooth.
Cover the dough with a kitchen towel and leave it to rest for some time .
Chop scallion finely and in a separate bowl mix 1 tbsp of all purpose flour ,3 tbsp of oil, And 1 tbsp of red pepper flakes together. ,
Make 5 dough balls of same size.
Roll one dough ball in to a thin long rectangle.
Spread some oil ,flour and red pepper mixture on it .Brush it evenly .
Spread scallion or green onion evenly .
Roll the rolled dough nicely starting from one side just like a log.
Make a circle with the rolled log.
Flatten the dough ball with your hand or a roller.
Heat oil in a cast iron griddle or any other hot griddle . 1-1.5 tbsp oil will be enough to use for one pancake . Take more if needed.You can certainly use more or less oil .
When it's quite hot place scallion pancake on it . Flip it over.
Turn the flame to low /medium. Brush with oil on both sides and cook properly with the help of a spatula.Cook it until both sides are golden brown .
Remove it from the griddle when it looks crisp and flaky .
Serve with a dipping sauce .
Make rest of it just like that .
Alternatively you can roll a big rectangle ,spread every thing and roll the log .You can cut 5 equal parts and roll them till your desired size.You can cook them till they are crisp and golden .I find first method easy so do it that way .