Step 1: Prepare and Marinate the Chicken : In a bowl, mix soy sauce, ginger-garlic paste, red chili sauce, salt, and pepper. Add chicken cubes and coat well. Mix in cornflour and all-purpose flour to form a thick batter. Add a few tablespoons of water if needed. Let it marinate for 15–20 minutes.
Step 2: Fry the Chicken : Heat oil in a deep pan or wok over medium-high heat. Fry chicken pieces in batches until golden brown and crispy. Remove and drain on paper towels. Set aside.
Step 3: Prepare the Manchurian Sauce : In another wok or deep skillet, heat 2 tablespoons of oil. Add garlic, ginger, and green chilies — sauté until fragrant. Add chopped onion and capsicum, stir-fry for 2–3 minutes (keep them slightly crunchy) Add soy sauce, chili sauce, tomato ketchup, vinegar, and sugar. Stir well. Pour in chicken stock and bring to a simmer. Add the cornflour slurry to thicken the sauce. Stir continuously until glossy. Add fried chicken pieces and toss to coat evenly. Adjust salt and pepper. Garnish with chopped spring onions.
Step 4: Prepare the Fried Rice : Heat oil in a wok on high heat. Add garlic and onions — stir-fry for 30 seconds. Add chopped vegetables and sauté for 2–3 minutes. Add cooked rice, soy sauce, vinegar, chili sauce, salt, and pepper. Stir-fry on high flame for 3–4 minutes, mixing well until evenly coated. Add spring onions and toss one last time.
Step 5: Assemble and Serve : Serve the Chicken Manchurian hot with a generous portion of fried rice on the side. Drizzle extra sauce over the rice if you like it saucy. Garnish with fresh spring onions and serve immediately.