My friend Satya gave me her version of an orange cake when I went for tea at her house. The cake was rich and slightly bitter, but also sweet with the tang of orange that lasted well after you had finished the final bite. This is my version of her beautiful cake and I hope that I can do it justice. I’ve used Clementines but you could replace them with two large oranges instead, boiling them for a little longer. It is best to serve this spongy cake while it is warm.