Jerk-spiced chicken drumsticks

Ingredients

• 2 tablespoons olive oil
• 8 chicken drumsticks (1.2kg)
• 4 green onions (scallions), chopped coarsely
• 5 centimetre (2-inch) piece fresh ginger (25g), grated
• 1 1/2 teaspoon ground allspice
• 1/2 teaspoon ground cinnamon
• 2 fresh long green chillies, chopped coarsely
• 1 teaspoon cracked black pepper
• 2 cloves garlic, crushed
• 3 teaspoons finely chopped fresh thyme
• 2 tablespoons light brown sugar
• 1 tablespoon cider vinegar
• 2 tablespoons orange juice