I always cook my oatmeal/porridge. It's always steel-cut oats, not old-fashioned oats or rolled oats or quick-cooking oats, and I always cook them in milk and/or cream, and they're nearly always flavored with brown sugar and maple syrup, with some golden raisins tossed in.
My mom would cook old-fashioned oats when I was a kid, in water, cook them nearly dry, then add in cream at serving time, with a big fat blob of butter on top.
My mom would cook old-fashioned oats when I was a kid, in water, cook them nearly dry, then add in cream at serving time, with a big fat blob of butter on top.