*Mix your oil and water in a bowl and coat your hands with it once you start to handle the dough*
Step 1- Combine masa and water gradually (you can use a stand mixer if you want). The dough should be smooth.
Step 2- Cover the dough with a towel and let it rest for about 15 minutes.
Step 3- Wet your hands and roll the dough into a golf ball sized ball.
Step 4- One ball at a time, form the dough into a bowl.
*This will take practice, the first ones will probably look more rough than the later ones*
Step 5- Fill the ball with about a tablespoon or two (depending on how confident you are in your technique) of your filling and then close up the ball. Then flatten it as good as you can without having the filling come out.
*Repeat this with the rest of your dough*
Step 6- Coat a large non-stick skillet with oil and heat it until it starts to shimmer. Add your pupusas to the pan, press down with your spatula and cook until well browned on each side (4 minutes a side)
*If you want to make the curtido, mix all the ingredients together in a large container, refrigerate over night and serve.*