Small, shallow-fried masa boats topped with shredded pork or chicken, salsa, and onion. These protein-rich Puebla-style antojitos make a delicious family appetizer or street food snack.
Mix masa harina and water with 0.5 tsp salt until a soft dough forms; cover and let rest for 10 minutes.
Divide dough into 8 portions and shape each into a small boat with raised edges on a work surface.
Heat 3 tbsp oil in a large skillet over medium-high until shimmering, then reduce to medium.
Shallow-fry each masa boat for about 2 minutes per side until edges are crisp and lightly golden; drain briefly on paper towels.
Top each chalupa with a mix of shredded pork and chicken, spoon over green or red salsa, and sprinkle with chopped white onion; serve immediately for best freshness.