Tarte aux Noix or Walnut Tart
I love Autumn and its flavours, and one of my favourite is nuts. I know I've mentioned it before, but every Autumn in France we got given a bag of walnuts from my neighbour's tree. She used to make this tart with some of them.  I bought a large bag of shelled walnuts on offer at a local deli, so decided to make her tart. I know the taste won't be quite the same, not using fresh nuts, but it will be a lovely memory of Reneé.   Preheat oven 200C/gas6.            23cm tart tin   Pastry: 125g flour, 75g butter, 25g caster sugar, pinch salt, 1 egg and 25ml water.   Mix all the ingredients together into a firm ball of dough. Pop in fridge till needed.   Filling: 500g shelled walnuts, 150ml crème fraîche, 60g caster sugar, 1 beaten egg, 1 tspn vanilla extract and icing sugar for the top.   Keep enough walnuts back to have enough to cover the top. Put these on a baking tray and put into the oven for a few minutes till they have some colour.   Put the rest in a blen...