Wash the pumpkin thoroughly, remove the skin and seeds, and steam it.
Mash the steamed pumpkin until smooth.
Add eggs and sugar, and mix well.
Sift in cake flour and baking powder, then combine.
Add milk and cooking oil, and mix everything evenly.
Pour the batter into a pan and bake in a preheated oven at 180°C for 30-35 minutes.