Ingredients:
2 tablespoons vegetable oil
1 medium onion onion, diced
5 tomatoes, seeded and chopped
5cm piece of ginger, peeled and grated
4 garlic cloves, minced
2 habanero chillies, finely chopped (substitute the chilli if you want it milder)
500ml water
60ml strong, brewed, coffee
1 tbsp tamarind paste
2
Nigerian curry powder
1 tbsp ground smoked and dried prawns
1/4 tsp irú (nététou) [fermented locust beans]
1/2 tsp ground cubeb pepper
1⁄4 teaspoon ground cumin
1⁄4 teaspoon coriander seeds, coarsely crushed
1/4 tsp freshly-ground black pepper
50g soft brown sugar