Dry fried chilli prawns

Ingredients

• 2 tablespoons oil
• 2 onions, finely chopped
• 2 cloves garlic, finely chopped
• 2 teaspoons salt
• 1 teaspoon dried chilli flakes
• 1 teaspoon ground paprika
• 1 teaspoon cayenne pepper
• 1/2 teaspoon ground turmeric
• 1/2 cup water
• 1 lime, juiced
• 1 kilogram medium green prawns, peeled, deveined, tails intact
• 50 grams palm sugar, grated
• 1 tablespoon tomato paste
• coriander leaves, rice and pappadums to serve