Lamb koftes with yoghurt dip Serves: 4 Ingredients 450g lean minced lamb 1 medium onion, grated 1 garlic clove, crushed ¼ tsp crushed saffron, dissolved in ½ tsp salt ½ tsp freshly ground pepper 1-2 tsp sumac for the dip: 200g Tenderstem 350g plain yoghurt 2 large garlic cloves 3 tbsp extra virgin olive oil