Name: Pumpkin Soup (Balkabağı çorbası)
Yield: Serves 4
Cuisine: Turkish
Ingredients: 1 large leek, sliced (reserve a little of it for the garnish); 2 onions, chopped; 1 teaspoon ground allspice; 2 tablespoons clarified or ordinary butter; 4 cloves garlic, chopped; 1 teaspoon sugar or honey; 2 lb/900 g pumpkin flesh, cut into small pieces; 1 teaspoon ground cinnamon; salt and freshly ground black pepper; 4 tablespoons thick creamy yogurt; 2 pints/1.2 litres chicken stock; a little extra butter