Preheat a large skillet with a couple teaspoons of oil over medium high heat. Mix together the dry seasonings for the chicken and sprinkle the chicken breasts liberally. Place the chicken breasts in the hot skillet and cook until brown. Flip and cook the other side, adding a bit more oil if necessary, until the breast is cooked through.
While the chicken is cooking, make the sauce by mixing together the liquid ingredients well with the cornstarch until no lumps remain. Add the rest of the ingredients to the pan and simmer over medium-low heat until thickened - about 20 minutes.
Serve the chicken with some sauce over rice with a side of steamed or stir-fried vegetables.