Preheat the oven to 180°C (356°F).
Chop tofu and dark chocolate into small pieces.
Blend tofu, dark chocolate, cocoa powder, oatmeal, honey, and baking powder in a blender to make the batter.
Pour the batter into a baking pan greased with oil.
Bake in the oven at 180°C (356°F) for 20–25 minutes.
Let cool and cut into bite-sized pieces.