BBC Food - Recipes - Basque chicken with artichoke and pepper salad

Ingredients

• 2 small red onions , cut into quarters
• 1 red bell pepper , cored, seeds removed, cut into 1cm/½in thick strips
• 1 green bell pepper , cored, seeds removed, cut into 1cm/½in thick strips
• 6 garlic cloves, thinly sliced
• 1 chicken , weighing about 1.6kg/3lb 8oz, cut into 8 pieces
• 2 tsp piment d’Espelette (red chilli powder ), available online or in specialty food stores
• 1 tsp crushed red pepper flakes
• 250ml/9fl oz dry white sherry
• 1 lemon , juice only
• 125g/4½oz fresh chorizo , cut into 5mm/¼in thick pieces
• extra-virgin olive oil
• 250ml/9fl oz chicken stock or water
• 4 plum tomatoes , halved lengthwise
• sea salt and freshly ground black pepper
• 2 large globe artichokes
• 5 tbsp extra-virgin olive oil
• 1½ tbsp sherry vinegar
• 1 tsp piment d’Espelette
• 2 garlic cloves, finely chopped
• 125g/4½oz frisée leaves, white and light yellow parts only
• 2 red bell peppers , cored, seeds removed, diced
• 2 bunches of spring onions , trimmed, thinly sliced
• 1 small red onion , thinly sliced
• 4 tbsp fresh flatleaf parsley leaves