Remove excess moisture from the tofu with a paper towel.
Blend the tofu until smooth using a blender.
Add mugwort powder, chocolate (cocoa) powder, sugar, baking powder, salt, and milk to the tofu, then mix well.
Add the egg and mix again until well combined.
Add flour and mix with a spatula to make the pound cake batter.
Line an oven pan with parchment paper and pour in the batter.
Bake in a preheated oven at 180°C for 30-35 minutes.
Let the pound cake cool before serving.