I have been making perfect creme brûlée for many years. I was intrigued by the Chef steps sous vide recipe and decided to try it. I have made two attempts and it's not setting up like a traditional creme brûlée. I have adjusted the egg yolks and cooking time and it is the consistency of pudding. I have never used salt in a custard and I was a little skeptical could this be the culprit?