To begin, prepare the dough. In a large bowl, mix the masa harina, warm water, and salt until a smooth, pliable dough forms. Knead gently for about 2–3 minutes to ensure even hydration. Cover the bowl with a damp cloth to keep the dough moist while you prepare the fillings.
Prepare the filling by combining mozzarella cheese, cooked pork, refried beans, loroco, jalapeños, cumin, and smoked paprika in a medium bowl. Mix thoroughly. Adjust salt and pepper to taste. For a more cohesive filling, lightly mash the beans into the mix.
Prepare the curtido. In a mixing bowl, combine cabbage, carrot, onion, vinegar, warm water, oregano, and salt. Toss well, pressing slightly to soften the cabbage. Cover and let it sit at room temperature while you cook the pupusas. This step ensures the flavours meld together.
Make the tomato salsa. Heat olive oil in a small pan over medium heat. Sauté the garlic and onion until fragrant. Add the diced tomatoes, cumin, and salt. Simmer for 10 minutes, stirring occasionally, until the mixture thickens slightly. Blend until smooth or leave chunky based on preference.
Form the pupusas. Divide the dough into 8 equal balls. Flatten each ball into a 4-inch disc using your hands. Place 1–2 tablespoons of filling in the centre of each disc. Fold the edges of the dough up and over the filling, sealing it completely. Gently flatten the stuffed ball back into a disc, about 5 inches wide, ensuring the filling doesn’t leak out.
Heat a non-stick griddle or skillet over medium heat. Lightly oil the surface to prevent sticking. Place the pupusas on the hot griddle and cook for 3–4 minutes per side, or until golden brown with slightly crispy edges. Rotate them gently for even cooking.
While the pupusas cook, give the curtido a final toss to evenly coat the vegetables. Adjust seasoning if needed. Warm the tomato salsa slightly on the stove if desired for serving.
Serve the pupusas hot, accompanied by curtido and tomato salsa on the side. Arrange them neatly on a serving platter for an inviting presentation. For an authentic Salvadoran touch, offer additional jalapeños or a drizzle of crema. Enjoy your Pupusas Locas fresh, celebrating the vibrant flavours of El Salvador.