It was invented in late Ming dynasty when the Mengguolejin Clan settled in Buxin Area of Liaoning Province. The original Mongol Pie is made of locally produced buckwheat, beef and mutton. In 1636 when the Left Tumote Banner was set up, pie was soon introduced into the then official residence. Mongo Pie used to be cooked through baking and frying, but later people used milk and oil of beef and mutton to fry it. Now the skin of the pie is made of flour and is then fried in bean oil. Mongol Pie features thin skin, golden-yellow color, and lasting fragrance.