Buy a decent oat to start with, as with any recipe.
Soak overnight if you can or otherwise as a guide, use half milk and half water equal parts oats and liquid. Pinch of salt - as above - and cook through stirring to prevent sticking and burning. Serve with another pinch of salt - or sugar if you have to with a dod of milk to 'float' the porridge as again noted.
You can add extra thing is if you want to as well - apples pieces, raisins, whisky, almonds, raspberries, chocolate shavings . . . .
http://www.stoatsporridgebars.co.uk if you are near one of their outlets - the one with tablet in is brilliant - and you can order their oats online form the site if you want to get the best raw ingredients too..
Re. yoghurt - NO, not for the porridge! - best breakfast use? - stir in fresh fruit, raw oats, dried fruits etc and make up as a muesli base, or make a smoothie -with fruit and thin a little with milk.
Also use it in something like a simple mushroom stroganoff recipe, as a base to any of your fave curries, make a smoothie with raspberries, bananas and peach, or with a yoghurt cake incorporating some fresh (or frozen) fruit,or make a fruit fool, or a herb dip, or stir into a cold soup like cucumber or mint pea, or use to make cheesecake, or use in a compote, or use as frosting on a carrot cake or . . . there are quite a few uses...!