Reply Help with my cupcakes

Babes ...

I have done some Cup cakes this morning before I saw your post and yes your recipe for keeping the cupcakes to the cake has worked. only problem today Is they have suck A little in the middle I don’t know why maybe I’ve added too much milk I will give your recipe a go over the weekend and I’ll let you know how I get on thank you so much for all your help.
I am a newbie to cake making so any tips would really hep.