When used properly, cornflour is an excellent thickener. Place the required amount of conrflour in a small bowl and stir in a little cold water (1-2 tablespoons) until it is completely blended. Add a little of the hot sauce to the cornflour mixture, blend well and then whisk this back into your main sauce, which should be just below boiling point. Stir the sauce continually until it reaches a steady simmer, then cook it gently for 2 minutes and serve.
** Asian Recipes