Paczki are traditional Polish pastries, similar to doughnuts, that are typically filled with fruit preserves, custard, or sweet cream. They are made from a rich, sweet yeast dough that is deep-fried until golden brown and then dusted with powdered sugar or glazed. Paczki are especially popular during Fat Tuesday (or Mardi Gras), as they are often consumed to use up rich ingredients before the fasting season of Lent begins. These treats have a long history in Poland, dating back to the Middle Ages. In addition to their delicious fillings, paczki are known for their light and airy texture. They have gained popularity in various countries, particularly in areas with large Polish communities, where they are enjoyed year-round, not just during the pre-Lenten season.