Salo is a traditional food, very common in Ukraine and Russia. It is essentially cured pork fatback. It is typically raw fat, preserved by salting and sometimes seasoned with garlic, pepper, or other spices. It is not just plain fat; the curing process gives it a distinct flavor and texture. People eat it sliced thinly, often on rye bread, sometimes with garlic or onions. It was very popular because it is an excellent source of energy, especially important in cold climates, and it could be stored for long periods without refrigeration. It is a very simple but important part of their diet tehre.