This recipe is from the Australian Women's Weekly Pressure Cooker cook book with a few minor alterations. I love corned beef but the DH would only tolerate it occasionally (maybe twice a year) but done this way he likes it and is quite happy to eat it once a month. If you get a larger piece of corned beef we have found that the cooking time remains the same. I cook this in an electric pressure cooker and in mine it takes 20 to 25 minutes to come up to pressure so have included this in the cooking time plus the 15 minutes resting time. UPDATE - our butcher no longer brines his own corned beef and gets it in from an outside supplier and we have found we have had to up the cooking time by 10 minutes to get the same beautiful results, so have changed the recipe to reflect that.