Use it within 2 days. It may not last long, so it’s a good thing it’s easy to make. Why is my marshmallow frosting runny? The ...

The cake itself is very easy to make – the tricky ... Sift 450g/1lb of the icing sugar into a large mixing bowl and add the blue marshmallow mixture. Using an electric hand whisk beat until ...

Using a sieve, shake equal amounts of icing sugar and cornflour over the base until the parchment is lightly dusted. To make the marshmallow, put the sugar, glucose and 200ml/7fl oz of water into ...