Dice onions, and 1 tbsp ginger paste, and fry in olive oil for 3 minutes on medium heat.
Add tomato puree and stir everything together for another 3–4 minutes.
Pour a can of chopped tomatoes into a blender along with the onion mixture and tinned fish.
Blend the sauce until it’s smooth. Add oil more to the pot to fry king prawns and the rest of the ginger paste for 5 minutes on medium heat.
Add the blended mixture to the pot and cook everything for 30 minutes on low heat.
While it cooks, flavour the sauce with garlic powder, curry powder, dried parsley, and chilli flakes.
Cook for a further 10–15 minutes on low heat, and add salt to taste.
In a separate pot, cook pasta according to instructions. Once cooked, plate pasta and top with the sauce. Final step, add basil or parsley to garnish.