01 -
Slice the onion, mince the garlic, and chop the cabbage, bell pepper, and carrot. Dice the chicken breast into bite-sized pieces.
02 -
In a large skillet or wok, melt the butter over medium-high heat. Add the diced chicken and cook until golden brown and fully cooked through, about 5-7 minutes. Remove the chicken from the skillet and set aside.
03 -
In the same skillet, add the sliced onion and minced garlic. Stir-fry for 1-2 minutes until fragrant. Add the chopped cabbage, bell pepper, and carrot. Stir-fry for about 5 minutes, until the vegetables are tender but still crisp.
04 -
Return the cooked chicken to the skillet. Add soy sauce, oyster sauce (if using), sesame oil, black pepper, and crushed red pepper flakes. Stir until everything is well coated with the sauce.
05 -
If you prefer a thicker sauce, add the cornstarch mixed with water to the skillet and stir until the sauce thickens.
06 -
Serve the stir-fry hot over steamed rice or noodles. Enjoy!