Method
Preheat the oven to 180C/350F/Gas 4.
Lightly heat the knob of butter inside a pan and brush two 6in-7in/15cm-17.5cm cake tins using the melted butter. Line the foot of the 2 cake tins having a circle of greaseproof paper.
Inside a large bowl, cream together the butter and sugar until pale and creamy, utilizing an electric whisk or perhaps a wooden spoon. Beat well to obtain plenty of air in to the mixture (this will take a few momemts).
Beat within the eggs individually. Give a tablespoon of flour when the mixture curdles.
Fold within the flour utilizing a large metal spoon. Take care not to over-mix it.
Pour the mix equally backward and forward cake tins and level from the top having a spatula. Create a slight dip within the center using the tip from the spatula should you don't would like them to become got going in the middle.
Devote the oven and bake for around twenty minutes, or before the cakes spring when pressed lightly having a finger and therefore are pale golden in colour.
Remove in the oven and remove them from the tins after about 5-ten minutes. Put them on the wire rack to awesome completely (for around 30 minutes).
Spread the sponge using the jam and also the whipped cream, then carefully sandwich together.
Dust with icing sugar and serve.