Preheat the oven to 180°C (160°C fan-forced).
Place a deep, heatproof baking dish into the oven.
Heat olive oil in a pan over medium heat. Add tomatoes, onions, garlic, salt, oregano, chillies, carrot, celery, capsicum, and coriander. Cook for 20 minutes, stirring occasionally.
Heat ghee in a skillet. Add cumin and paprika. Cook for 1 minute.
Add cooked vegetables, black beans, balsamic vinegar, sugar, tomato paste, stock paste, dark chocolate, and water to the skillet. Bring to a boil.
Transfer the mixture to the preheated baking dish in the oven. Bake for 1 hour.
Serve the black bean molè hot, garnished with shaved dark chocolate.
