Chicken al Pastor Skillet

Ingredients

• 1 1/2 pounds chicken thighs (cut into quarters)
• 1/4 cup pineapple juice
• 2 tablespoons white vinegar
• 1 tablespoon lime juice
• 1/2 large onion (coarsely chopped)
• 2 cloves garlic
• 1 teaspoon cumin
• 1 teaspoon oregano
• 1/2 teaspoon cinnamon
• 1 tablespoon salt
• 1/2 tablespoon black pepper
• 1 tablespoon achiote paste
• 2 tablespoons guajillo chili powder
• 1/2 cup pineapple (chunks)
• 1 tablespoon olive oil