Chicken Tingas Sandwich

Ingredients

• tingas
• 3/4 cup extra virgin olive oil, divided
• 1 small onion, julienned (about 1/2 cup)
• 5 or 6 garlic cloves, sliced (about 1/4 cup)
• 8 plum tomatoes, seeds removed, julienned
• 8 ounces mexican coca-cola (or any similar cola made with cane sugar)
• 1 cup chipotle vinegar adobo (recipe follows)
• 1 bay leaf
• 4 skinless boneless chicken breasts
• sandwiches
• 4 sesame seed rolls
• 8 ounces queso oaxaca (if unavailable, substitute mozzarella)
• 1 (14-ounce) can refried beans
• 2 sprigs papalo (if unavailable, substitute cilantro)
• chicken tingas
• 1/2 head iceberg lettuce, shredded
• 1 whole avocado, sliced thinly
• 15 dried chipotle chiles
• 1/2 medium white onion
• 1/2 cup cider vinegar
• 2 tablespoons lime juice
• 2 tablespoons orange juice
• 1 tablespoon honey
• salt