Used the Ella's kitchen one last night
Very easy to make - just added a bit of kettle water to it and stirred. Both hamsters ate it all up. The bag should last me a very long time! I put a teaspoonsful in a mug and added the boiled water till it was the right thickness - it doesn't take much water. I had it too runny at first so had to add another teaspoonful to get it the right consistency which was then way too much for two hamsters.
Smell still made me feel sick! So it must be just the hot oats smell. Very weird. Anyway I find it much more convenient than trying to do a small amount in the microwave.