Add finely chopped garlic and jalapeno to oil and gently saute for 2-3 minutes until oil is seasoned.  Don't burn or brown the garlic

Add soy, fish sauce, oyster sauce and sugar, stir and cook for one minute

Add your choice of fish to the oil and coat with the oil and begin to cook over medium heat until about half way done

Add bell peppers and onion, stir to coat with sauce.  Continue to saute on medium heat until protein is largely cooked

Mix cold water with corn starch and add to sauce, stir. Add roughly torn basil leaves liberally to sauce. Cook two more minutes till sauce slightly thickens. Add more flour mix, or more water to achieve desired sauce thickness.  Try not to add too much or you'll dilute the flavors

Serve with steamed white rice