if you aren't bothered about them being amazing here is a very simple one:
(makes 12ish cupcakes)
200g sugar
200g butter
200g self raising flour
4 eggs
1/2 teaspoon of baking powder
1 teaspoon of vanilla essence if you like
if it seems a bit dry chuck a bit of milk in but it shouldn't with all those eggs!
mix mix mix with an electric whisk if possible then stick in the oven for 20ish minutes on gas mark 4ish......(my little book contains a lot of ish's)
but if you are bothered about them being amazing i would use lisag's recipes
i have a few different cupcake/muffin ones depending on who is going to be eating the result