Steps
1. Preheat oven to 175°C (350°F).
2. Melt the chocolate and butter together until smooth.
3. In a separate bowl, whisk the egg and sugar until pale and fluffy.
4. Slowly mix the melted chocolate mixture into the egg mixture.
5. Sift in flour and cocoa powder, fold gently to combine.
6. Pour batter into a small, brain-shaped silicone mold or a small round mold.
7. Bake for 15-18 minutes until just set.
8. Let cool slightly, then remove from mold.
9. Mix raspberry jam with red food coloring to create 'blood' sauce.
10. Drizzle the sauce over the brownie, creating vein-like patterns to mimic brain texture.