1. Put all the ingredients in a preserving bottle and stir until smooth.

2. Cover softly with plastic wrap and microwave on 600W for 30seconds. (15seconds on 1200W)

3. Remove the wrap and screw top. Lasts for a month in a refrigerator.

For how long you should cook with your microwave oven, see Cooking Time vs Wattage Conversion.
For more tips of using Microwave Oven, see Sachiko's Guideline to Microwave Cooking.