Spiced courgettes with curried yogurt recipe

Ingredients

• 6-7 courgettes, thinly sliced lengthways
• 2 tbsp vegetable oil, plus extra
• 1 tsp sea salt flakes
• 1 tsp black onion seeds (also known as nigella or kalonji seeds)
• 1 tsp fennel seeds
• 1 tbsp chopped fresh coriander
• Juice ½ lemon
• 1 tsp cumin seeds
• 1 tsp coriander seeds
• ½ tsp chilli flakes
• ½ tsp black peppercorns
• 1 tbsp vegetable oil
• ½ tsp mustard seeds
• 4 fresh curry leaves
• ½ tsp ground turmeric
• 1 tsp sugar
• ½ tsp salt
• 250g Greek yogurt
• 2.5cm piece fresh ginger, finely chopped
• 1 green chilli, finely chopped