Heat oil in a large wok or deep skillet over high heat. Add ginger, garlic and chili paste and heat until fragrant, about 30 seconds.
Sprinkle chicken with salt and pepper to taste then add to the pan. Stir-fry until chicken is golden brown, about 7-9 minutes stirring frequently. Remove from pan; set aside.
Add peppers and onions to the pan along with a pinch of salt and pepper. Stir-fry, stirring frequently, until tender, about 5 minutes.
Return chicken to the pan and add soy sauce, lime juice, fish sauce, and sugar. Cook for 2-3 minutes further. Stir in basil right before before serving over Jasmine rice.
Notes
Thai basil preferred but Italian basil works well too.