For a richer flavor, use a dark brown sugar instead of light brown. If you don't have a resealable bag, a bowl covered with plastic wrap works just as well for marinating. Serve immediately with a side of steamed white rice and a fried egg for the complete Filipino breakfast experience. Feel free to adjust the amount of brown sugar to your liking, depending on how sweet you prefer your longanisa. Andouille sausage can also be used in place of kielbasa for a spicier flavor.