Make Berber & Q's buttermilk chicken shish kebab

Ingredients

• 100ml buttermilk
• ½ tsp ground cumin
• ¼ tsp cayenne pepper
• 1 tsp sweet paprika
• ¼ tsp ground cinnamon
• 2 garlic cloves, minced
• 2 tbsp garlic oil or olive oil
• 1 tbsp hot red pepper paste (biber salcasi)
• Grated zest and juice of 1 lemon
• 1 tsp salt
• ¼ tsp coarse ground black pepper
• ½ onion, sliced
• 8 chicken thighs, deboned, skinned and quartered
• 2 green pepper, deseeded and cut into chunks
• 2 red pepper, deseeded and cut into chunks
• Red onion, peeled and quartered
• 4 thin metal skewers, approximately 40–45cm long
• Pitas or flatbread
• 1 tbsp olive oil or garlic oil, plus extra to brush
• 1 tbsp thinly sliced spring onion
• 1 tbsp picked oregano leaves
• 1 tbsp quick-preserved Lemon
• Toum (garlic sauce)
• Plus more exclusive toppings from Berber & Q's cookbook