This is ready made and gave great results first time. However, I was told by a helpful young lady at The Delicious Cake Company in Farsley that if you coloured it then you needed to increase the baking times and she suggested 20 minutes. I tried to colour it black ( without success, I got grey) and used quite a bit of gel colouring and had to bake it for 30 minutes. It seems that the more colouring used the longer the baking times which would have been useful if put in the instructions. However, this is still a great product and I will be using it again, possibly gold.