It's a Victoria Sponge...
225g of self raising flour, sugar and butter. 4 eggs. Few drops of vanilla essence. Little bit of milk.
Cream sugar and butter until it's fluffy. Slowly add eggs & vanilla essence whilst mixing. Fold in the sifted flour. Add in a bit of milk if it's sticky, you want a consistency that'll come off a spoon softly. Add the mix to a greased cake tin (do two if you want, or you can just cut it in half). Oven at 180c for 20 minutes. Remove, wire rack. Let it cool, then cut in half and add cream & jam. Devour.
Dead easy, but delicious!