Make the sauce by combining all of the sauce ingredients together. Mix well.
Heat half the oil in a large frying pan over medium heat. Add garlic and ginger and cook, stirring occasionally, until crisp and golden brown. Remove with a slotted spoon and transfer to paper towels. Lightly sprinkle with salt.
Reduce heat to medium-low, add the remaining oil, and sauté the leeks and carrots for 4-5 minutes, stirring occasionally until they start to soften.
Increase heat to medium-high, add the cooked rice, and stir well, breaking up any clumps. Cook for 2–3 minutes, letting the rice toast slightly in the pan. Stir in the frozen peas, allowing them to heat through.
Pour in the pre-mixed sauce and toss the rice quickly but evenly, coating every grain. The trick is to keep the heat high and avoid stirring too much. Fry for short bursts between stirs.
Push the rice to one side of the pan, pour in whisked eggs, and scramble them directly in the pan before mixing them into the rice. Stir until the egg is just set and evenly distributed.
Sprinkle the crispy garlic & ginger on top, along with sliced spring onion. Drizzle with sesame oil.