Chickpea and chorizo stew

Ingredients

• 1 tbsp sunflower or mild olive oil
• 1 medium onion, finely sliced
• 2 garlic cloves, finely sliced
• 75g/2½oz soft cooking chorizo
• 1 tsp hot smoked paprika
• 1 x 400g tin chopped tomatoes
• 200ml/7fl oz just-boiled water
• 2 tbsp tomato purée
• 1 x 400g tin chickpeas
• 75g/2½oz curly kale, rinsed, shredded, tough stalks removed
• salt
• freshly ground black pepper
• crusty bread, to serve