Wash the mugwort thoroughly and remove any excess water.
Mash the tofu and mix it with the mugwort.
Add eggs, sugar, salt, cake flour, and baking powder, then mix well.
Add cooking oil and knead evenly.
Pour the batter into a pound cake mold.
Bake in a preheated oven at 180°C (356°F) for 35-40 minutes.
Cool and serve.