Tandoori Cod with Dhal

Ingredients

• 300ml thick greek natural yoghurt
• 2 tsp ground cumin
• 2 tsp paprika
• 1 tsp hot chilli powder
• 1 tsp turmeric
• 2 tbsp white wine vinegar
• 1 tbsp ginger paste
• 1 tb garlic paste
• 4 x 200g cod portions
• 25ml veg oil
• 180g butter
• 1 onion, diced
• 5-cm piece fresh ginger, chopped
• 3 garlic cloves, chopped
• 2 teaspoons black mustard seeds
• 1½ teaspoons turmeric
• 2 teaspoons ground coriander
• 2 teaspoons garam masala
• 250g yellow split peas, soaked overnight in cold water and drained
• Parsley, roughly chopped