Pupusas: filling inside the corn cake

Useful to know

Pupusas are stuffed corn cakes associated with El Salvador. In the King Arthur Baking recipe examined here, the filling combines black beans and cheese, and the finished cakes are served with a vegetable accompaniment called curtido. [1]

The useful distinction is where the filling goes: it is enclosed in the dough before the cakes are cooked on a griddle. Compared with a taco, this changes the shaping and thickness, rather than merely renaming the corn base.