I’m a gnarly git on a healthy food kick – so for last year have been doing this for porridge:
Two handfuls of porridge oats
Place in small container – ie mug, cup, bowl
Salt and sugar (or sweetener pill) to taste
Just cover with boiling water and stir.
Leave for 5 mins then scoff. Forget milk, powdered or otherwise, your body will thank you, eat more greens!
NB 1/2 a fresh apple sliced into it instead of sugar is great. I grew up fed soft, perfect porridge like cream, all lovingly cooked for hours etc…but now prefer The Chewy One.