Roast mejadra onions recipe

Ingredients

• 6 large white onions, peeled
• 5 tbsp extra-virgin olive oil
• 1 tsp cumin seeds, lightly crushed
• 1 tbsp coriander seeds, lightly crushed
• 100g white basmati rice
• 100g brown lentils
• ½ tsp ground turmeric
• 1 tsp ground allspice
• 1 tsp ground cinnamon
• 400ml vegetable stock
• 50g flaked almonds, lightly toasted, plus extra to garnish
• A large handful of flat-leaf parsley, chopped
• 2 tbsp red wine vinegar
• A pinch of caster sugar
• Rocket salad, to serve (optional)