Kasundi Halibut | Hari Ghotra

Name: Kasundi Halibut | Hari Ghotra
Ingredients: 4 pieces of chunky halibut or white fish; Juice from 1 lemon; 1 tbsp mustard paste; 1 garlic clove, crushed; 1 tsp cumin seeds, crushed; ½ tsp salt; ½ tsp turmeric; ¼ tsp chilli powder; 1 tbsp rapeseed oil; 1 red onion, minced; 1 tbsp coconut oil; 1 tsp fennel seeds; 1 tsp cumin seeds; 1 tsp mustard seeds; 20 curry leaves; 2cm fresh root ginger; 4 garlic cloves; 2 chillies (or to taste); 200g plum tomatoes, blended; 1 tsp coriander seeds, crushed; ½ tsp red chilli power; ½ tsp turmeric; 1 tsp salt; 50g green mango, grated (also a little extra for the garnish); 200g coconut cream; 2 handfuls of fresh kale; 1 tbsp Rapeseed oil; pinch Rock salt; ½ tsp cumin seeds