Thai Basil Chicken

In a wok or large cast iron skillet over high heat, heat oil. Add bell pepper, shallots and garlic, and cook, stirring frequently, until golden, about 2 minutes. Add chicken and cook, breaking up the chicken into small bits, until cooked through, about 3 minutes more. Add chilis and toss to combine.  Pour chicken broth, oyster sauce, fish sauce, and sugar into the wok and cook, stirring, until thickened. Add basil and toss until wilted.  Serve over rice.