Cooking Steps

1. 

   Step1:Stir duck egg with onion, salt, wine and black peppe

2. 

   Step2:Hot oil in a pan. Pour in the well stirred egg mixture. If the cake is thin, there is no need to turn it over. If the cake is thick, turn it over and fry

3. 

   Step3:Turn off the fire and roll up the slices. Squeeze some ketchup