Situated somewhere between a glaze and a frosting, the fresh lemon and orange juices in this citrus icing give a sweetness and zing to any cake that might need a little extra pep in its step.
Aside from sifting icing sugar, which is never the world's fastest or mind-engaging task, this will come together super quickly, and doesn't take long to set. Mixing the zest in with the butter infuses its oils through the mixture while the butter will also help the icing develop a crunchier crust.
MAKES
More than for one 20cm cake
PREP
10 minutes
COOKS
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