- Step 1
Preheat oven to 180C. Line a large shallow baking dish with baking paper.
- Step 2
Heat the oil in a small frying pan over medium high heat. Add chillies and garlic and cook for 2 mins or until chillies start to blister. Transfer to a small processor. Add oregano, paprika, extra oil, vinegar and salt. Process until just smooth. Reserve 1/2 cup of the piri piri sauce.
- Step 3
Using kitchen scissors, cut down either side of chicken’s backbone. Place chicken breast side up and press down on breastbone to flatten. Pace on prepared dish. Brush 1/2 the remaining piri piri sauce. Bake for 1 hour 30 mins, brushing with the remaining sauce occasionally, until golden and cooked through. Set aside to rest for 10 mins.
- Step 4
Meanwhile, bake the chips for the last 30 mins of cooking time or until golden. Combine the mayonnaise and lemon juice in a small bowl.
- Step 5
Divide the chicken with chips among serving plates. Serve with reserved piri piri sauce, lemon mayonnaise, lemon wedges and oregano leaves.