I really wouldnt know, I tried making them for my mum and it was a bit of a disaster.
I did it in the microwave and when I put it on the plate it dropped like a brick! They were so rubbery, but bless her she still tried to eat it. Didnt get past one bite tho.
My nans a very good cook and she said its suppose to be runny and is easier to do it in a saucepan with a bit of vinegar in he water. If you are going to do it in the microwave then you should under cooked it and leave it to stand.
Hope you have more success than I did.