Hatch Green Chile and Cheese Empanadas

Name: Hatch Green Chile and Cheese Empanadas
Ingredients: 3 1/3 cups all-purpose flour; 1 teaspoon salt; ¾ cup lard ((or shortening/butter)); 1 egg; ½ cup dark beer ((or broth/sparkling water)); 10 Hatch or Anaheim chiles (roasted, peeled, and chopped); 2 tablespoons olive oil; 2/3 onion (chopped); 2 cloves garlic (chopped); 1 tablespoon flour; 1 to 2 jalapeño peppers (roasted and chopped (optional)); 1/3 cup milk; 1 cup shredded muenster cheese; ½ cup shredded Oaxaca cheese ((or Monterey Jack)); Egg white