For the marinade
1 cup dark Mexican beer, such as Negra Modelo
2 tablespoons dark sesame oil
1 tablespoon finely chopped garlic
1 teaspoon dried oregano
1 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
1/4 teaspoon ground cayenne pepper
6 boneless, skinless chicken thighs
2 cups of your favorite guacamole
8-12 Taco size corn tortillas
1. Mix all of the ingredients for the marinade together in a small bowl. Place the chicken thighs in a large Ziploc bag and pour in the marinade. Seal the bag, removing as much air as possible, and place in the refridgerator to marinate for 2 hours to overnight.
2. Remove chicken from the refrigerator while lighting the fire. Light one chimney full of charcoal. When all the charcoal is lit and covered with gray ash, pour out and spread the coals out evenly over the charcoal grate. Grill chicken until fully cooked and browned on both sides, about 4-5 minutes per side. Remove from the grill and allow to rest for 5 minutes. Cut chicken into thin strips.
3. While the chicken is resting, warm tortillas on the grill until pliable, about 30 seconds to 1 minute per side. To assemble, spread a heaping spoonful of guacamole along the middle of each tortilla. Pile with chicken slices and serve.