Add melted butter and sugar into a bowl, or mixer and mix until smooth.
Add the four eggs and continue to mix until thoroughly mixed.
Finally, add sifted flour and mix until the desired consistency is reached. I sometimes add an extra ounce or two of flour if I don't like the look of the mix.
Place into the cupcake cases and bake for 15 - 18 minutes at 180 degrees. Makes your oven is pre-heated.
When your cakes are cooked, take them out of the oven and let them cool before adding sugarcraft icing, sprinkles and the flags.