Chestnut soup with roasted partridge
By Matt Tebbutt From Saturday Kitchen Ingredients For the chestnut soup 2 tbsp olive oil 1 onion, diced 3 garlic cloves, chopped 3 celery sticks, diced 1 leek, finely chopped 100g/3½oz pancetta, diced 1 bay leaf ½ bunch thyme, leaves removed 2 tbsp tomato purée 500g/1lb …