Smalec is a traditional spread originating from Poland. The spread is based on rendered pork fat, onions, and spices. For centuries, it was a hearty and inexpensive meal for the working class, and over time it became a symbol of Polish hospitality.
Although there are many versions of the spread, it's usually made with a combination of pork fat, onions, diced apples, prunes, garlic, marjoram, salt, and pepper. The onions, apples, and prunes are fried in pork fat over low heat. The mixture is then enriched with minced garlic, marjoram, and seasonings.