1. Cut onion to slice, then put the onion into pan, add in other ingredients follow by spaghetti, tomato, garlic and butter.
2. Add in the soup stock, whipping cream and cover by lid to cook for 13 minutes.
3. Pour in the fresh prawn to cook for 1-2 minute or until the prawn is cooked.
4. Add in salt and black pepper powder for seasoning. Before serve, add also basil and parmesan cheese.