Chickpea & chorizo soup

Ingredients

• 1 tablespoon olive oil
• 1 (200g) brown onion, finely chopped
• 2 clove garlic, crushed
• 1 (130g) chorizo sausage, thinly sliced
• 16 cup (4l) water
• 500 gram ham bone
• 4 dried bay leaves
• 12 sprigs fresh flat-leaf parsley
• 2 (600g) potatoes, coarsely chopped
• 600 gram canned chickpeas, rinsed, drained
• 1 cup finely shredded spinach leaves