Combine flour and salt and mix in oil until you get a coarse crumbly texture. Pour in hot boiling water, mixing and then keading until a soft dough forms. Let rest for 30 minutes.
Transfer the dough onto a work surface and divide into 2 equal pieces. Roll into balls and let rest for 15 minutes.
Roll the dough out into a thin rectangle. Rub with oil and top with scallions. Tightly roll up the dough from the long end and twirl in a spiral. Flatten and roll into a thin disk.
Heat up a pan on high heat and cook one side until you start to see large air pocket bubbles start to form. Flip and cook the other side for another ~1 minutes or until the bubbles on the bottom starts browning. Transfer to a plate and cover with a towel to prevent it from drying out. Repeat with the rest of the dough.