Meanwhile, in a wok or large non-stick skillet, over a medium high heat, heat olive oil. Add onions, asparagus, peppers, and corn and stir-fry for 2-3 minutes. Add chili sauce along with chicken and stir-fry 1-2 minutes. Dissolve cornstarch into chicken broth and add to wok stirring for 1-2 minutes until sauce has thicken slightly. Finish by mixing in basil and cayenne pepper.