Prepare the Chilies: In a dry skillet over medium heat, toast the guajillo and ancho chilies for about 1-2 minutes until fragrant. Soak them in hot water for 10 minutes until softened.
Blend the Adobo Sauce: In a blender, combine the soaked chilies, tomatoes, garlic, onion, apple cider vinegar, cumin, oregano, paprika, cinnamon, chicken broth, salt, and black pepper. Blend until smooth.
Sear the Chicken: Heat olive oil in a large pan over medium-high heat. Sear the chicken for about 3-4 minutes per side until golden brown.
Simmer in Sauce: Pour the blended adobo sauce over the chicken. Add the bay leaf, reduce heat, cover, and let simmer for 25-30 minutes until the chicken is tender and fully cooked.
Serve & Enjoy: Remove the bay leaf and serve the chicken adobo with warm tortillas, rice, or fresh avocado slices.