MICROWAVE STEEL CUT OATMEAL Use at least a quart (liter) size container, this stuff boils up (and over). I use a quart size glass measuring bowl. Just dump it all together. 1/2 cup steel cut oatmeal 1 cup water 1/4 cup dried fruit (optional) Cook 10 minutes at 80% power. In my 600 watt microwave this will boil over if cooked at 100% power, so power % and time may need to be adjusted.