Pupusas are delicious pillows of masa harina stuffed with equally delicious things like: beef, ground pork, beans, shrimp, and cheese.  Usuluteco cooks every single one on demand and they are amazing.  Slightly crispy exteriors with warm, soft dough wrapped around tasty dreams. Loroco (Fernaldia pandurata) flowers are also featured as stuffing.  This herbaceous vine is…