[header] How to frost a cake [title] Let your cake cool. [step] The biggest mistake you can make when frosting your cake is using a hot cake and cold frosting. If your cake is even slightly warm, it will melt the icing which will then run over the edges and soak into the top layer, making it soggy.
Further, if you use cold frosting it won't be smooth enough to spread and will bring up a lot of crumbs. [substeps] Always wait for both your cake and your frosting to reach room temperature.