Mexican-inspired pulled pork tacos

Ingredients

• 1 kg pork shoulder, skin/fat removed
• 12 small soft tortillas
• Guacamole, sour cream, salsa, lime wedges and coriander sprigs, to serve
• For the marinade:
• 2 tbsp chipotle paste
• 1 tbsp ground cumin
• 1 tbsp ground coriander
• 1 tsp dried oregano
• Juice of 1 orange
• Juice of 1 lime
• 3 tbsp red-wine vinegar
• 4 garlic cloves, crushed
• 1 tbsp tomato puree
• 1 tbsp salt