You can use formula or coconut or almond milk. I used coconut and almond milk whenever I make oats
Always used the sachets of porridge from 6 months with just regular cows milk with both of my children. And just added various toppings.
I would just buy regular oats and add cows milk. But this is also fine to give, you might just find you waste a bit because it’s in sachets and baby won’t eat that much
Yes
i mix banans and cinnamon in porrige for my 1yo
Cows milk is fine to use in food from 6 months, you'd know by now if they had an allergen most formula uses cows milk. Should be fine id just double check the ingredients might be easier just to buy oats as then definitely nothing else added and you can adapt portion sizes easier than with sachets