The Meatless Seekh Kebab

Name: The Meatless Seekh Kebab
Ingredients: 3 small raw green bananas ((matoke)); 400g g tin chickpeas (drained); 2 tsp fresh ginger (minced); 1 1/2 tbsp seekh kebab masala ((recipe below)); 2 tbsp freshly-chopped coriander; 1 medium-sized onion (very finely chopped (about 100g)); 75 g plain flour; 75 g chickpea flour; 2 tbsp oil; 100 g vegan butter (melted); 2 tsp coriander seeds; 2 tsp cumin seeds; 1 tsp carom seeds; 2 bay leaves; 6 dried red chillies; 1 star anise; 8 cloves; 10 black peppercorns; 3 tsp dried ginger powder; 1 tsp dried mango powder; 1/2 tsp ground allspice; 2 tsp dried garlic powder; 2 tbsp chickpea flour; 1 1/2 tsp dried mint; 2 tsp salt