1. In a blender, combine Guajillo chiles, onion, garlic, tomato, chicken broth and cumin. Blend until smooth and set aside.
2. In a pot, heat a tablespoon of vegetable oil. Pour blended mixture and cook for 5 minutes. Add shredded chicken and cook over low heat for 15 minutes or until salsa is reduced.
3. Stuff each Pasilla chile with a spoonful of prepared masa for tamales and add a spoonful of the chicken guisado. Wrap each chile with corn husks.
4. Place each tamal-stuffed chile pasilla in a steamer and steam for about an hour. Garnish tamal-stuffed chile pasilla with cilantro, serve with refried beans on the side, and pair with corn atole.