01 - Heat 4 tbsp oil in a small saucepan over medium-low heat. Add sliced garlic and cook, stirring frequently, until golden brown, about 2-3 minutes. Remove from heat immediately and stir in chili flakes, smoked paprika, sugar, and salt. Allow to cool completely before using.
02 - Heat 2 tbsp neutral oil in a large wok or skillet over medium-high heat. Add shrimp and cook for 1-2 minutes until just pink and opaque. Add crab meat and toss gently for 30 seconds until heated through. Transfer seafood to a plate and set aside.
03 - In the same pan over medium-high heat, add diced onion and cook for 2 minutes until translucent. Add scallion whites, minced garlic, bell pepper, peas, and carrots. Stir-fry for 2-3 minutes until vegetables are softened but still retain some crunch.
04 - Push vegetables to one side of the pan. Pour beaten eggs into the empty space and scramble quickly until just set, about 30 seconds. Mix the cooked eggs with the vegetables.
05 - Increase heat to high. Add cold rice to the pan, breaking up any clumps with a spatula. Stir-fry vigorously for 2-3 minutes until the rice is heated through and begins to develop a slight crispiness.
06 - Return cooked shrimp and crab to the pan. Add soy sauce, oyster sauce, fish sauce, sesame oil, white pepper, and salt if needed. Toss everything together for 2 minutes, ensuring the rice is evenly coated with seasonings and all ingredients are well distributed.
07 - Remove from heat. Sprinkle with reserved scallion greens. Serve immediately in bowls, drizzling each portion generously with the prepared garlic chili oil. Serve while hot.