BBQ Pork (or Chicken) Souvlaki

Ingredients

• 1kg pork shoulder, trimmed of all excess fat and sinew, cut into 3cm cubes
• 4 large green chillies
• Finely grated zest and juice of 1 unwaxed lemon
• 3 garlic cloves, crushed
• 2 Tbs finely chopped fresh oregano
• 2 Tbs olive oil
• 1 Tbs red wine vinegar
• 2 tsp dried mint
• 1 tsp ground cumin
• 1 tsp chilli flakes
• 1 tsp fine sea salt
• Flatbreads
• Tzatziki
• 2 ripe tomatoes, finely sliced
• 2 red onions, finely sliced chips (optional)