You can get some really nice cup cake cases now from shops that specialise in kitchen stuff- it's worth putting some away for the odd special occasion as they really do add the finishing touch. I just had to buy them 'cause they were so cute!
Here's the recipe;-
You need:- 125 g butter, softened; 2 eggs; 3/4 cup caster sugar; 2 tspns vanilla extract; 1.5 cups Self Raising Flour; half cup milk. (for chocolate cakes just substitute 2 tbspns flour with cocoa).
You:- Beat butter, sugar & vanilla together until pale. Beat in eggs one at a time. Sift the flour over the mixture and milk and continue mixing until all is well combined. Spoon into cup cases, in muffin size tin. Bake at 190 degree's celcius for approx 15 mins. For vanilla cakes - you can cut a shallow cone from the top of each cake and fill with vanilla butter icing; for these cup cakes just make up some basic butter icing (1 cup icing sugar, 1 tspn butter, 2-3 tbspns milk or enough to make correct consistency, pink food colouring or cocoa - mixed together with wooden spoon). Decorate with icing and lollies when cakes have cooled. This recipe is great as it can be adapted in so many different ways - just check out some of the 'cup-cake' recipe books to get some idea's.