Step 1: Prepare the Sauce - In a small bowl, whisk together the oyster sauce, low sodium soy sauce, fish sauce, and sugar. Add a splash of water if the sauce seems too thick. Set aside while you prepare the stir-fry.
Step 2: Heat the Oil - In a wok or large skillet, heat the peanut or coconut oil over medium-high heat. Allow the oil to get hot, shimmering but not smoking.
Step 3: Cook the Chicken - Add the bite-sized chicken thighs to the hot oil. Stir-fry for about 5-7 minutes or until the chicken is cooked through and slightly caramelized. Remove the chicken from the pan and set aside.
Step 4: Sauté Aromatics - In the same pan, add the minced garlic and Thai bird chiles. Sauté for about 30 seconds until fragrant, being careful not to burn the garlic.
Step 5: Add Vegetables - Add the white parts of the scallions, red bell pepper, and green beans. Stir-fry the vegetables for 3-4 minutes until they are just tender but still crisp.
Step 6: Combine and Flavor - Return the cooked chicken to the pan and pour in the prepared sauce. Toss everything together, allowing the sauce to coat the chicken and vegetables evenly. Cook for an additional 2-3 minutes, letting the flavors meld.
Step 7: Finish with Basil - Remove the pan from heat and fold in the fresh Thai basil leaves, allowing them to wilt from the residual heat.
Step 8: Serve and Enjoy - Serve your Thai Basil Chicken over steamed rice or quinoa for a complete meal. Top with the green parts of the scallions for a pop of color and extra flavor.