Pre-heat the oven to gas mark 5, 375o F (190o C). Bake for 15/20 minutes
Cream butter and sugar together until you get a pale fluffy mixture. Beat eggs in a separate bowl and add bit by bit to mixture, beating well after each amount put in.
Put flour in a sieve above mixing bowl and sieve about a quarter of the flour into mixture, set aside sieve with remaining flour on a plate, and lightly and gently fold first lot of flour into mixture, repeat bit by bit until all flour is folded into the mixture.
Add 2 tablespoons of Carolans and beat mixture well until consistency is smooth and drops off spoon easily. This should take no more than 20/30 seconds.
Place paper baking cases into patty tin and drop an equal quantity of the mixture into the paper cases. Then bake in the middle of the oven for 15-20 minutes. When cooked centre will feel springy when lightly touched with a fingertip and no imprint remains.
Take cases out of patty tin and leave on wire tray to get cold.
Place icing sugar into a dry glass bowl and mix in Carolans a spoon at a time as you mix until you have a light spread consistency. When cakes are cold, with a knife dipped in water spread a small amount of icing on each little cake and leave to set.