Slow cooker prawn curry recipe

Ingredients

• 1 tsp whole black peppercorns
• 4 tsp coriander seeds
• 2.5 tsp cumin seeds
• 4 tbsp vegetable oil
• 2 medium onions, quartered
• 2 tomatoes, quartered
• 400 ml can coconut milk
• 100 g desiccated coconut
• 2 whole fresh red chillies
• 0.5 tsp ground turmeric
• 30 g piece of fresh ginger, peeled
• 4 garlic cloves, peeled and chopped
• 100 g baby spinach
• 1 lime, juiced
• 1 small bunch coriander, roughly chopped
• 400 g raw king prawns (fresh or defrosted from frozen)