Add the sauce ingredients fish sauce, light soy sauce, and sugar in a small bowl. Whisk it well until sugar dissolved. ( You can heat up in microwave for 4-5 seconds to melt the sugar. )
Heat the large wok or pan over medium heat, drizzle 2 tbsp of oil and stir fry the shallots and garlic for a few seconds until fragrant. Add the prawns and cook for 1-2 minutes.
Then, push the prawns to one side of the wok, drizzle 1 tbsp of oil and add 2 eggs inside the wok. Let it set for a few seconds then break them into small pieces. Add chillies and sprinkle salt and pepper to taste.
Next, add the cooked rice and pour the sauce mixture over the rice. Bring the heat to a high and stir fry for about 2 mins or until the sauce is combined well with the rest of the ingredients.
Add spring onions, toss everything well for another 1-2 mins. Transfer to a serving plate and garnish with, cucumber, lime wedges, and coriander.