Oval masa cakes filled with seasoned fava beans and cooked on a comal until golden. This vegetarian, protein-rich antojito is a healthy, traditional family snack rooted in ancient Mexican cuisine.
Mash the cooked, peeled fava beans with 0.25 tsp salt and epazote (if using) until a coarse paste forms. Set aside.
In a mixing bowl, combine masa harina, the remaining 0.5 tsp salt, and water. Knead until a soft, non-sticky dough forms. Adjust water if necessary.
Divide masa into 8 equal balls. Flatten each ball into a thick disk (about 4 inches across and 1/2 inch thick).
Place 2 tbsp of fava bean filling in the center of each disk. Fold the masa over the filling and seal the edges, shaping each into an oval.
Heat a comal or heavy skillet over medium heat. Lightly brush with vegetable oil. Cook the tlacoyos 4–5 minutes per side, pressing gently to ensure even golden color and cooked-through masa.
Transfer tlacoyos to a cloth-lined basket and cover to keep warm. Serve hot, optionally topped with chopped onion or salsa.