First of all poach the salmon. Place it in a saucepan with a splash of white wine, enough water to cover and bring to the boil. Now reduce the heat to a simmer and cook for 1 minute. Baste with the liquid and turn off the heat. There should now be enough heat left to cook the fish without over cooking. Leave to cool in the liquid. In a saucepan, melt the butter and cook the leeks for 10 minutes without colouring. Add the white wine and saffron and reduce down. Now add the cream and half the smoked oysters. Taste and adjust. Add more oysters if preferred. The oysters have quite a distinctive flavour and can sometimes be too strong for a few people. Toss in the asparagus and add the lemon juice and zest. Cook for a few minutes and then pop in the salmon. Break up the salmon gently into chunks not flakes. Now put this filling in to a pie dish, small enough to let the filling come close to the top and keep warm. Roll out your pastry onto a lightly floured surface to about 1/4 inch thick. Moisten the flat rim of the pie dish with a little water and lay a strip of pastry all the way around the rim. Now moisten that. If you have a pie funnel put it on top of the filling. If you dont a tea cup will do. Now lay your pastry over the top. Trim to fit and use left over pastry for decoration. Be careful not to stretch the pastry as this can cause shrinking during cooking. Make a small hole in the pastry to let the steam out and then pinch the edges of the pie together with the thumb and forefinger and mark with a fork. You can make rosebuds, acorn leaves, or whatever takes your fancy! Glaze with beaten egg and cook in a hot oven 200C/gas 6 until the pastry is golden brown. DISCLAIMER(c) Copyright 1996 - SelecTV Cable Limited. All rights reserved. Carlton Food Network http://www.cfn.co.uk/