Mix chicken with all of the ingredients for the marinade then thread onto bamboo skewers. Set aside for 15 - 20 minutes whilst making the spicy garlic oil.
Heat oil and butter in a pan over medium heat then add all the ingredients for the sauce. Cook for 2 minutes until fragrant, then set aside.
Grill chicken skewers for 2 - 3 minutes on both sides or until cooked through then serve drizzle over with the spicy garlic oil.
