1, peel off the outer membrane of the pork loin to get a net loin.

2. Place half of the pork loin flat on a cutting board, with the side with the loin shame facing up. Use a knife to cut a number of parallel knife lines diagonally, then turn at an angle and use a straight knife to push and graze a number of parallel knife lines that intersect the diagonal knife lines at 90°.

3. Cut the pork loin in equal parts lengthwise and crosswise to obtain 4 rectangular strips. When these strips are heated, the side with the loin bashfulness, due to the softness of its fiber structure, is prone to contraction after heat, resulting in curling into the shape of wheat ears.