Skilly is a type of GRUEL, a thin porridge made from oatmeal or other grains. It is a traditional dish in Wales and Scotland, and is usually served with butter, salt, and pepper. It is also known as skirly or skirlie. Skilly is often served as a breakfast food, but can also be eaten as a snack or light meal. It is a nutritious and filling dish that is easy to make and can be enjoyed by people of all ages.