Orange marmalade gives this cake its orange kick. This fruit preserve has a softer set than jam, and contains bits of fruit peel, particularly citrus rind.
With a plastic bag and the microwave, it’s easy to melt chocolate and decorate a cake. Place the chocolate chips and oil in a small plastic bag. Microwave on HIGH about 1 minute, until the chips are just melted. Knead the bag gently to combine the chips and oil. Snip a very small opening off one corner of the bag and squeeze to drizzle the glaze over the cake.