Great question — answering as the UphillTech team:
You can cook a single serve of porridge in the microwave very easily Place oats and water or milk (or water and milk powder) into a microwave safe serving bowl, and cook on high for about 3 minutes. Stir and let stand for a couple of minutes, and it should be just like "mums"
Full answer by TFD: https://cooking.stackexchange.com/a/26067 (CC BY-SA 3.0).
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