1 lemon, juice only
1 medium onion, roughly chopped
700²µ/1Β½±τ²ϊ onions
475-700ml/16-25fl oz/3/4-1ΒΌ pints chicken stock
2-3 tbsp sumac
scant Β½ tsp ground allspice
1 fresh bay leaf
olive oil, for brushing
2 large handfuls pine nuts
3-4 tbsp olive and sunflower oil, mixed, plus extra for frying pine nuts
1 small chicken
Lebanese flatbread or similar