Warm the vegetable oil in a large wok over high heat until smoking. Cook the chicken to the hot oil in batches for about 2-3 minutes, moving it around in the pan as it cooks. Remove the chicken and set it aside.
Stir in the reserved paste, ground peppercorns, and more oil as needed. Saute for one minute, then add green beans, krachai, and kaffir lime leaves. Cook for 1-2 minutes.
Return the chicken to the pan and cook for 4-5 minutes. Meanwhile, combine the oyster sauce, soy sauce, fish sauce, and sugar in a small bowl and add it to the pan. Lower the heat and cook for 4-6 minutes until combined.
Notes
Expert Tips:
Use medium heat to high heat, depending on your cooking range to finish the meal.
Stir-frying requires a hot wok, so prepare the pan by warming it over high heat before adding any ingredients.
Cook the ingredients for the stir fry in stages. Begin with the chicken, which takes longer to cook, and move on to the vegetables before finishing with the sauce.
Nutrition Disclosure:
The nutritional information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for professional advice.