Microwave Oatmeal 1/3 Part oatmeal 2/3 Parts water When in a hurry, use very hot water and microwave on high for 1 minute. It tastes much better if you use cold water and microwave on high for 3 minutes, stirring after each minute of cooking. Use a container big enough to allow the porridge to rise during cooking so that it won't boil over and mess up the microwave oven. Yield: 1 Serving