My friend who gave me the recipe was shocked I had made it 3 times, she pull out her calorie book and counted 1400 calories, I hope she meant kilojoules Must pop on the exercise bike more often I think. I don't have any issues with 3 minutes in the microwave, mine is 2 years old and surely over 1000w, maybe because I eat it while it is so bloody hot I can't tell the texture