Step 1

Place onions in a blender with paprika, oregano, lemon juice and olive oil, season to taste and blend until smooth and combined. Transfer to a large bowl with chicken, season to taste and mix until combined. Cover and refrigerate to marinate for 12 hours or overnight.

Step 2

Preheat a lightly greased barbecue or char-grill pan to high, barbecue chicken, turning frequently, until charred and cooked through (15-20 minutes). Rest for 1 minute before serving.

Step 3

To serve, transfer to a platter, drizzle with extra olive oil and serve with lemon wedges, cucumber, herbs and tzatziki or yoghurt on the side.