PLEASE can someone help my cupcakes have recently come away from the cases i normaly cook then take them straight out the muffin tins and cool of cake rack - what am doing wrong i thought if left to cool in the tins the steam would make them come away?

I use to bake perfect cupcakes then all of a sudden the liners would come away from the cake, I couldn't work out why then my husband said "you must have changed something." I tried baking them longer thinking that maybe they were slightly under cooked, but that wasn't it. Then it hit me one day that I added extra liquid for a normal cake and would take that liquid away when I was doing cupcakes. So as soon as I remembered the liquid that I had added previously for the perfect cupcakes, the very next batch was perfect. So all it was in my case was the cake batter was too wet and soon as I corrected that, problem solved. I hope this works for you

I had this issue too, I changed the liners to grease proof ones and haven't had an issue. If you haven't changed the liners then maybe they are too moist.

I think it is a moisture issue...I've noticed it always happens if I try to brush syrup on the cupcakes as they come out of the oven... and it seems to be a problem with very moist recipes. It gets worse if the batter doesn't fill up the cup properly - less contact with the paper for it to stick I guess.