Chinese Sweet and Sour Sauce

• ½ cup ketchup
• ½ cup vinegar
• ¾ cup

Combine all ingredients except cornstarch mixture in an 8-cup microwavable bowl and stir well. Microwave uncovered on High for 6 to 7 minutes, until boiling, stirring at half time. Stir cornstarch mixture into sauce. Microwave on High for 2 minutes longer, until bubbling and thickened.