1. Prepare the necessary ingredients. Wash the green prawns to the prawn line, and wash and dice other ingredients.
2. It is very important to fry the tomato juice first, so sit in the hot oil pan, pour in the right amount of oil, sauté the chopped shallots and ginger after heating, then pour the diced tomatoes, turn to medium heat, and fry the tomato juice.
3. Pour in the fresh shrimp and fry until the color changes.
4. Pour in the remaining ingredients except the onions, add 2 tablespoons of light soy sauce and 1 tablespoon of oyster sauce, and add some boiling water.
5. When half of the soup is cooked, add the chopped onion and simmer until the juice is collected.
6. Use this time to cook udon noodles. Udon noodles are cooked in boiling water for about 5 minutes.
7. Pour a spoonful of gravy on the udon noodles. The taste is extremely delicious. If you like gravy with soup, don't wait for the juice to be collected. It is equal to the appropriate amount of soup and then toss the noodles.
