Chicken Tostadas en Papillote
- Preheat oven to 350°F (175°C).
- In a small bowl, stir together the chili powder, paprika, cumin, salt and pepper. Rub all over the chicken breasts. Place them in a parchment bag with the onion, sweet red pepper, lime juice, beer or chicken broth, and chipotle puree.
- Fold the bag up to close and place on a baking sheet. Bake at 350°F (180°C) for 25-30 minutes, or until the chicken is no longer pink inside and the juices run clear. If you are using a meat thermometer, it should read 165°F (74°C) at the thickest part of the breast.
- Remove the chicken breasts from the bag and set aside to cool.