Any rolled oats for making porridge that come in a bag or box from the supermarket. Personally I prefer Scotts Old Fashioned, because they are chunkier, but some people don't like them for that very reason and prefer the finer ones.
Many supermarkets do their own brand, which is usually the best value. They keep well in an airtight container, so you can get a big bag/box and then use it for hot porridge when the weather gets colder.
Don't get the ones in sachets, such as Oats So Easy, because they are really expensive in comparison.
