Moroccan tagine

INGREDIENTS

• 2 red onions , chopped
• 3 garlic cloves
• small knob fresh root ginger , peeled
• 100ml/3½ fl oz lemon juice (about 3 lemons)
• 100ml/3½ fl oz olive oil
• 1 tbsp each honey, cumin, paprika, turmeric
• 1 tsp hot chilli powder
• handful coriander , chopped
• 1 tbsp olive oil
• 3 carrots , cut into chunks
• 3 large parsnips , cut into chunks
• 3 red onions , cut into chunks
• 2 large potatoes , cut into chunks
• 4 leeks , ends trimmed and cut into chunks
• 12 dried prunes , dates or figs
• 2 sprigs mint , leaves only, finely chopped