Skirlie is a traditional oatmeal side dish, also sometimes known as “Scottish stuffing”. It’s also often mixed in with mashed potato to give it a little crunch. It’s generally made with pinhead or steel cut oats, onion, seasonings, and some kind of fat like beef or vegetable shortening. Every family has their own way to make it, and it’s the kind of recipe that you can experiment with to make it your own too.