I am so sorry to have neglected those of you who have tried the recipe and didn't get the results you wanted! I don't have a specific temperature the mixture must reach when cooking it. I do know that when I cook the mixture, I have to cook it for around 20 minutes on medium high heat. When stirring, you want to see a DEFINITE change in the mixture's density, and when stirring, the mixture should completely pull away from the sides of the pan. I do hope this helps. If anyone else needs any advice, feel free to PM me. Merry Christmas!