Enchiladas Rojas With Barbacoa Recipe

Name: Enchiladas Rojas With Barbacoa Recipe
Ingredients: 6 serrano peppers (you can use less if you don't want it as spicy; 1 onion; 3 cloves garlic; 2 tablespoons cumin; 2 tablespoons chili powder; 1 beer (something pale like Corona or Rolling Rock works best); 1 3-pound bone-in chuck roast; 2 pounds fresh tomatoes; 1 sweet onion; 1-3 jalapeños (depending on desired spice level); 2 cloves garlic; 1 tablespoon cumin; 1 cup chicken stock; Salt and pepper; corn tortillas; 1 pound queso fresco