1. Put the flour in a small basin and put a little salt in it.
2. Add cold water to the flour and stir to form a uniform batter.
3. Heat the pot, put a little oil in it and spread it evenly.
4. Add a tablespoon of batter.
5. Spread the batter quickly with a wooden spatula.
6. Bake one side, turn it over, and cook the other side. Then burn the second and the third one in turn...
7. Heat the duck in the microwave, pull it into small pieces, and put it on the cake.
8. Spread some sweet flour sauce on the cake and roll it up.
9. The finished product is ready to eat.
