Chocolate and Marmalade Celebration Cake

This chocolate cake was first published in our book (Monday Morning Cooking Club - the food, the stories, the sisterhood). It came from Sydney matriarch and great-grandmother, Elza Levin, and may just be the most frequently baked cake in our collection. It is a make-it-with-your-eyes-closed, you've-got-everything-in-your-pantry kind of cake. For this oversized celebration of double chocolate goodness, which is in our most recent book (Now for Something Sweet), you will need to