Cream the butter and sugar together until fluffy using a wooden spoon (an electric whisk is also perfect for this). Try to get the mixture as fine as possible.
Add the eggs gradually. Make sure to beat the mixture well after every pour.
Once the eggs are added sift the flour and fold gently into the cake mix. Use a spatula to do this (alternatively use a metal spoon).
Once all the ingredients have been mixed add to a lined or greased round baking cake tins.
Bake the cakes for 25-30 minutes. To make sure it is cooked insert a skewer into one of the cakes and if it comes out cleaned it is cooked.
Allow to cook for 20 minutes on a wire rack. Then make a sandwich using whipped cream and fruit jam as the filling.