Beer-Marinated Chicken Tacos

Marinade

• 1 cup dark Mexican beer
• 2 tablespoons toasted sesame oil
• 1 tablespoon finely chopped garlic
• 1 teaspoon dried oregano
• 1 teaspoon kosher salt
• ½ teaspoon freshly ground black pepper
• ¼ teaspoon ground cayenne pepper

• 6 boneless, skinless chicken thighs, each 3 to 4 ounces

Guacamole

• 2 ripe Hass avocados, halved and pitted
• 1 tablespoon fresh lime juice
• ¼ teaspoon kosher salt

• 6 flour or corn tortillas (6 to 8 inches)