Caramelised Onion and Grilled Chicken Tacos

Ingredients

• 500 g chicken thigh
• 2 brown onions, cut into thick wedges
• 1 tsp each ground cumin, paprika, coriander, oregano
• ½ tsp ground cinnamon
• 1 tsp salt
• 3 tbsp olive oil
• 1 large red onion, finely diced
• 1 mango, diced
• Large handful coriander, roughly chopped
• Juice 1 lime
• 1 avocado, cut into thin wedges
• 12 tortillas, warmed
• 1 fresh jalapeño, thinly sliced - optional
• Extra lime to serve