Add more orange juice, as necessary, until you get a smooth icing of the consistency you desire. Pour the icing over the cooled cake and spread lightly, allowing it to ooze over the edges.
If you are longing for something sweet and delicious from your oven but can’t get motivated because of time or just the extra work involved, then I have the perfect recipe for you. My orange quick ...
When baked in a cake, it produces a sturdy structure and acts like a sponge, drawing in all the flavour from the orange syrup ... put the mandarin juice, honey and thyme sprigs in a small saucepan.